Question

I need help on this question

Answer 1

-7/30

Explanation:

You can use 30 as the common denominator.

7/10 = (7/10)(3/3) = 21/30

14/15 = (14/15)(2/2) = 28/30

Then the difference is ...

7/10 -14/15 = 21/30 -28/30

= (21-28)/30 = -7/30