Question

Completar la fraccion correspondiente

1. 1/2+3/4+x=15/18

2. 13/7-1/5+x-1= -1+7/3

Answer 1

1/2+3/4+x=15/18
x=-1/2-3/4+15/18
x=-13/12

13/7-1/5+x-1= -1+7/3
x= -1+7/3+1+1/5-13/7
x=71/105