Question

what should be added to -11/15 to get7/20?

Answer 1

Let x be the number that should be added
Therefore
-11/15 +x= 7/20
x= 7/20 + 11/15
x= (21+44)/60
x= 65/60
Therefore 65/60should be added to -11/15 to get 7/20

Answer 2

hope it will help you.