Question

5/9-35/8+31/12

what would we add to this number to get ans 15

33/5+ __ =15

Answer 1

33/5+x=15
x=15-33/5
x=(15×5-33×1)/5
x=(75-33)/5
x=42/5

Answer 2

We add 42/5 to 33/5 to get 15
How-42/5+33/5=42+33/5=75/5