Question

Can someone please tell me how to add and subtract fractions with unlike denominators, I've been having trouble for 2 years, and still do not understand.

Answer 1

multiply the denominators to be the same Lowest common multiple. when the denominators are both the same you can add the numerators together

e.g. 3/5 + 2/10

= 6/10 + 2/10
 
= 8/10