Question

2/5 plus 1/4 plus 7/10

Answer 1

27/20 or 1 and 7/20

Explanation:

All you do is find common factors.

Answer 2

The answer is 1 7/20

2/5 x 4/4 + 7/10 x 2/2 + 1/4 x 5/5

= 8/20 + 14/20 + 5/20

= 27/20

= 1 7/20