Question

     5
8-4_=;
     7

   4     11
7 __-3__;
   15   15

Answer 1

1) 4 5/7= 33/7

8-33/7=56/7-33/7=23/7= 3 2/7

2) 7 4/15= 109/15
3 11/15= 56/15

109/15-56/15= 53/15= 3 8/15