how to do this? | Mathematics | Page 1

wooden hare Sep 23, 2024, 1:19 AM

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how do u know when to find LCM or HCF in these kind of questions?

vocal chasmBOT Sep 23, 2024, 1:19 AM

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wooden hare how do u know when to find LCM or HCF in these kind of questions?

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cosmic solar Sep 23, 2024, 1:20 AM

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wooden hare how do u know when to find LCM or HCF in these kind of questions?

You can find the greatest common factor using Euclid's algorithm, and the least common multiple is just the product divided by the GCD.

wooden hare Sep 23, 2024, 1:21 AM

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Euclid's algorithm

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wts that?

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wt is gcd?'

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ohh

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wait

cosmic solar Sep 23, 2024, 1:21 AM

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...greatest common divisor. Sorry, I called it a "factor", but I meant to say "divisor".

wooden hare Sep 23, 2024, 1:21 AM

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but

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u cant do both

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the question asks smthign specific

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so how do uk when to find which

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@cosmic solar

cosmic solar Sep 23, 2024, 1:23 AM

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I mean, you can do both.

wooden hare Sep 23, 2024, 1:23 AM

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but that takes more time

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and its confusinf

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confusing

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i didnt understand how u do both

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@cosmic solar

cosmic solar Sep 23, 2024, 1:24 AM

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...you have to do both.

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Because you have to find the GCD to find the LCM.

wooden hare Sep 23, 2024, 1:26 AM

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so

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once u find the lcm

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u divide it by

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no. of pens and and no. of boxes of pencils

cosmic solar Sep 23, 2024, 1:27 AM

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...can you please try to write complete sentences?

wooden hare Sep 23, 2024, 1:27 AM

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fine

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r u thinking or smthing?

cosmic solar Sep 23, 2024, 1:28 AM

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Okay, look, think about it like this.

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What you want is 40x = 15y, with x and y integers.

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Now, there's actually infinitely many solutions.

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Because if (x, y) is a solution, so is (x + 15, y + 40).

wooden hare Sep 23, 2024, 1:29 AM

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so...

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wt?

cosmic solar Sep 23, 2024, 1:30 AM

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https://en.wikipedia.org/wiki/Euclidean_algorithm

Euclidean algorithm

In mathematics, the Euclidean algorithm, or Euclid's algorithm, is an efficient method for computing the greatest common divisor (GCD) of two integers (numbers), the largest number that divides them both without a remainder. It is named after the ancient Greek mathematician Euclid, who first described it in his Elements (c. 300 BC).
It is an exa...

wooden hare Sep 23, 2024, 1:30 AM

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omg

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theres no need to complicate stuff

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im only in 9th grade😭

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u are doing math in a completely different way

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then me

cosmic solar Sep 23, 2024, 1:31 AM

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This is not remotely complicated. This is literally such a basic result of number theory that it dates back to 300 BCE.

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Calling this complicated is like calling the Pythagorean theorem complicated.

wooden hare Sep 23, 2024, 1:31 AM

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im gonna cry

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u dont have a way to

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know which 1

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to use?

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in these kind of questions?

cosmic solar Sep 23, 2024, 1:32 AM

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Complete sentences, please. And what do you mean "which one"? There's only one Euclidean algorithm.

wooden hare Sep 23, 2024, 1:32 AM

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like lcm or hcf

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and wt to do here

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@cosmic solar

cosmic solar Sep 23, 2024, 1:33 AM

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wooden hare like lcm or hcf

You always find the GCD, because you have to to find the LCM.

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And finding the GCD is what Euclid's algorithm does.

wooden hare Sep 23, 2024, 1:34 AM

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can

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we

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solve this

cosmic solar Sep 23, 2024, 1:34 AM

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No.

wooden hare Sep 23, 2024, 1:34 AM

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without

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the

cosmic solar Sep 23, 2024, 1:34 AM

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Not unless you use full sentences.

wooden hare Sep 23, 2024, 1:34 AM

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algorithem

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can we solve this without the algorithm?

wooden hare Sep 23, 2024, 1:35 AM

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cosmic solar Not unless you use full sentences.

cope man

cosmic solar Sep 23, 2024, 1:35 AM

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wooden hare cope man

Use full sentences or you can cope with me leaving.

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It's annoying, and I'm not in the habit of helping people who annoy me on purpose.

wooden hare Sep 23, 2024, 1:36 AM

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im not annoying u on pupose

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it jus take so much extra energy

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and

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its like 6 in the morining

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im a lil tired

cosmic solar Sep 23, 2024, 1:36 AM

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Why aren't you asleep?

wooden hare Sep 23, 2024, 1:37 AM

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cuz i have to study

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for my exam which is in a few hours

cosmic solar Sep 23, 2024, 1:37 AM

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No, you have to sleep. Studying won't help you if you're too tired to remember anything.

wooden hare Sep 23, 2024, 1:37 AM

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i slept

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and woke up

cosmic solar Sep 23, 2024, 1:38 AM

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If you slept, why are you tired?

wooden hare Sep 23, 2024, 1:38 AM

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becuz i slept late

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and woke up early

cosmic solar Sep 23, 2024, 1:38 AM

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Why?

wooden hare Sep 23, 2024, 1:38 AM

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BECUZ I HAD TO STUDY

cosmic solar Sep 23, 2024, 1:38 AM

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No, you need to sleep.

wooden hare Sep 23, 2024, 1:39 AM

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ill sleep when im dead

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which is not far away

wooden hare Sep 23, 2024, 1:40 AM

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wooden hare no. of pens and and no. of boxes of pencils

is this wt u do?

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its the simplest way rite?

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@cosmic solar

cosmic solar Sep 23, 2024, 1:40 AM

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How exactly do you plan to find the LCM?

wooden hare Sep 23, 2024, 1:41 AM

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prime factorization??

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@cosmic solar

cosmic solar Sep 23, 2024, 1:42 AM

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Okay, then do that I guess.

wooden hare Sep 23, 2024, 1:42 AM

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wooden hare is this wt u do?

this?

cosmic solar Sep 23, 2024, 1:42 AM

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I guess.

wooden hare Sep 23, 2024, 1:42 AM

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will it work for everything?

cosmic solar Sep 23, 2024, 1:42 AM

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Maybe.

wooden hare Sep 23, 2024, 1:43 AM

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wooden hare and wt to do here

even this?

cosmic solar Sep 23, 2024, 1:43 AM

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Maybe.

wooden hare Sep 23, 2024, 1:43 AM

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if u dont know just say it

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humility is important

cosmic solar Sep 23, 2024, 1:43 AM

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I know that the answer is "maybe".

wooden hare Sep 23, 2024, 1:43 AM

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well fine

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if i get this question wrong its ur fault

cosmic solar Sep 23, 2024, 1:44 AM

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No it's not.

wooden hare Sep 23, 2024, 1:44 AM

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well to me its ur fault

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anyway

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im wasting my time

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bye

cosmic solar Sep 23, 2024, 1:45 AM

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It's not my fault you don't have the attention span to learn.

wooden hare Sep 23, 2024, 1:45 AM

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I DO

cosmic solar Sep 23, 2024, 1:45 AM

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You don't even have the attention span to write a whole sentence.

wooden hare Sep 23, 2024, 1:45 AM

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WELL AT LEAST I PUT THE EFFORT TO GET SOME HELP

warm marten Sep 23, 2024, 1:45 AM

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is help still needed

wooden hare Sep 23, 2024, 1:45 AM

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nope

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goodbye

warm marten Sep 23, 2024, 1:46 AM

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okay

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gbye

wooden hare Sep 23, 2024, 1:46 AM

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+close

#how to do this?