Question

Please help with this​

Answer 1

Step-by-step explanation:

Let x be the number.

-4/15 + 7/10 + x = 1

-8/30 + 21/30 + x = 1

13/30 + x = 1

x = 1 - 13/30

x = 17/30

Therefore 17/30 should be added to (-4/15 + 7/10) to get 1.