Question

What's 2/5 - 9/10 as a fraction?

Answer 1

- 1/2

Explanation:

turn 2/5 to have the same denominator as 10

2 ( 2 ) = 4

5 ( 2 ) = 10

4/10 - 9/10

= -5/10

simplify

-5/10 = -1/2

hope this helps