#nultiplying rational expression

104 messages · Page 1 of 1 (latest)

grand shardBOT
analog perch
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<@&286206848099549185>

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@help

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plz someone 😭😭😭

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what specific help you need?

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I swnt the picture

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?

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the first 2 questions

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I want to knwow how to solve them

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not just the answer

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ok

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so i need to find the common factor right

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you want to multipy them together, and simplify them

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correct?

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like multiply both sides by the denominator u mean?

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no no, you want to multiply each part of the equation to get 1 expression

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right?

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like outright multiply u mean

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59 x 80?

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that is what it is asking, no?

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and 99 x 33

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the instruction is to just simplify each expression

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so this is mt answer

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is it right?

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and since they both appear to be multiplication of fractions, you should be good?

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uh let me check

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,help

unique kilnBOT
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A brief description and guide on how to use me was sent to your DMs!
Please use ,list to see a list of all my commands, and ,help cmd to get detailed help on a command!

analog perch
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,rotate

unique kilnBOT
analog perch
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yay it worked

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sry on my phone

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no worries

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question 1 checks out

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im doing 2 rn

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1 sec

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based on the instruction provided, it is right

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now?

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your denominator after reducing seems to be off i think

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no cuz 1-2= -1

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you can reduce 3162 and 1071 by 3 once

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the n part is fine

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that checks out

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i mean the plain numbers

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huh

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i dont get it

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can u solve and show me

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or draw

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on a pic

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on ur phone

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got it, 1 min

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okay thx

safe otter
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I would simplify first to make it easier to multiply

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but @analog perch got it

analog perch
safe otter
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oh kk

analog perch
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yea i actually dont know how to multiply lol

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i just passed in math until like 11th grade n now i have to study this

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First step

image.png
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we multiply the 2 expressions to get 1

analog perch
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Second step

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we reduce by a common factor

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in this case, 3

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how do i know whats the common factor for them using a calculator

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cuz the numbers are way too big

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do you know about the checks for finding multiples of some numbers?

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no

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like this trick with multiples of 3, where when you add all digits up, it will equal another multiple of 3

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is there a video on that

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let me find one rq

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okay thx

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i am not having a lot of luck searching for a video, but i can explain a few tricks

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For multiples of 2: number has to be even (6 is even, therefore a multiple of 2; 7 is not even, therefore not a multiple of 2)

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For multiples of 3: the digits of the number will equal 3, 6, or 9 when added together; if this doesn't work, try it again until it does (123 is a multiple of 3; 1 + 2 + 3 = 6)

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For multiples of 5: number has a digit of 5 or 0 in the one's place (2__5__ or 3__0__)

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there are more tricks to identify a multiple of a number quickly, and you can find it online at anytime

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in this case, we can use these tricks to find out potential common factors

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3162 is even, 1071 is not (2 can not be a common factor)

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3 + 1 + 6 + 2 = 12; 1 + 2 = 3 (so 3162 is a multiple of 3) and 1 + 0 + 7 + 1 = 9 (so 1071 is also a multiple of 3)

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3 is the common factor

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divide them both by 3 to reduce

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and you get 1054/357n

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1054 is even, 357 is odd, so 2 can't work, and 1 + 0 + 4 + 5 =10, which is not a multiple of 3, therefore 3 cant work

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you could check for any other niche multiples, and maybe reduce further if possible

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I apologize for this essay, but that video is near impossible for me to find

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well my answer was the same as urs and i just used a calculator so ill stick with that for now cuz my exam is in like 12 hours and tbh i didnt understand most of what u said

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sorry ;-;

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but thanks now ik how to do it at least

analog perch
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you're welcome

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can i keep this unsolved cuz i have more questions i want to chdck the answer to

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its ok if u dont reply i think others will later

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sure thats fine

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thx

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there is a whole group of helpers

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!15mins

grand shardBOT
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Please only use the <@&286206848099549185> ping once if your question has not been answered for 15 minutes. Please do not ping or DM individual users about your question.

analog perch
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if you ask a question and no reponse comes in 15 mins, you can ping

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👍 have a good one

analog perch
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.close