Question

Daca a/b =3/5 atunci a+b/3a-b este egal cu...

Answer 1

daca a/b=3/5 => a/3=b/5=k => a=3k si b=5 k. inlocuim => (3k+5k)/9k-5k =8k/4k=2

Answer 2

(a+b)/(3a-b)=(a/b+1)/(3a/b-1)=(3/5+1)/(3.3/5-1)=(3+5)/9-5)=8/4=2