Question

A guide to fractions!
So, this was a requested tutorial so here we go!
equations part 1 is here
:https://questioncove.com/study#/updates/608dbe8b5b828f43d548ec00

equations part 2 is here:
https://questioncove.com/study#/updates/608f22bc9365c25ed592c00

Answer 1

First, fractions with the same denominator! This one is quite easy! In fact all you have to do is subtract or add the numerators you have!

Answer 2

However, if a fraction has different denominators than we have to find the LCM between them! There are two ways to do that!

First: Make a list between the denominators of the multiples up to 10 of them and if there is a common one then see where it is located in the list. If it is located 1st then multiply the
denominator by 1 if located 2nd multiply by 2nd etc. Then do the same with your numerator

Second: If the list did not work then break both denominators into their prime factorization form, then multiply the repeating numbers by the most time it appears, and also multiply that by all the numbers that do not repeat. Then take that and divide the denominator by it and multiply the numerator and denominator by what you get for each.

Answer 3

Then after you find the LCM simply do what you did if they had the same denominator as they do!

Here's an example
1/20+1/5
20-->2^2,5
5-->5
2 appears 2 times and 5 appears once across both!-->2^2*5=4*5=20 so the LCM is 20
20/20=1
(1/20)*1=1/20
20/5=4
(1/5)*4=4/20
(4+1)/20=5/20
And if you want you could simplify that by finding the GCF, the biggest number they both can be divided by and be a whole number. Since 5 and 20 can both be found by dividing 5 then 5/5=1 and 20/5=4 so the answer is ¼

Answer 4

Next multiplying and dividing!
This is really easy for multiplying you just do
(a*b)/(c*d)!-->⅓*2/7=(1*2)/(3*7)=2/21 :)

Dividing is where you want to flip the second number upside down and then multiply!
(a*d)/(b*c)-->(½)/(1/9)-->(1*9)/(2*1)=9/2

Answer 5

Our last topic is comparing fractions!
This is really easy. All you want to do is repeat the steps we did to make them the same denominator and compare the numerator!

However if you have something like 1/a or 1/b which is bigger pick the one that has the smaller denominator as that means that it got split into more parts! I mean would you rather have ½ of a pizza or ⅕?

Answer 6

@karissafrazier is this gud :)?

Answer 7

i didn't get the notif but thx :)

Answer 8

can i pls have a post lock on this?