We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive pseudonymised information about your use of our website. cookie policy and privacy policy.

how do you do fractions

 Oct 14, 2015

Find a common denominator 



the CD is 15 because 3 and 5 both go into them.

find how many time the bottom part of the first fraction can go into there. 

in this case, 3 can go into 15, 5 times

so then youll mutiple your top number by 5


repeat this for the next fraction


Once you have your four fractions, subtract the top of the two new fractions

in this case it'll be 10 and 12 



then put that over 15 



 Oct 14, 2015

4 Online Users