Question

What should we added to -3/20 to get 2 9/20

Answer 1

2.60

Explanation:

This is a strange way to solve the problem, but it works for me.

1. Convert to decimals

-3/20 = -.15

2- 9/20 = 49/20 = 2.45

2. Solve

2.45 - (-.15)

2.45 + .15 = 2.60