Question

Find the exact sum or difference.

7/15+9/10

A. 7/9

B. 1 13/15

C. 2 2/9

D. 1 1/15

Answer 1

if you add it’s 1 11/30 and if you subtract it is -13/30 . so therefore they had a typo in the answers or you asked the question wrong sorry. have a great day ! :)

Answer 2

Ok so to solve this question you need to find the least common denominator of both fractions which is 30. To get 15 to 30 you have to multiply it by 2. So multiply both sides of the fraction by 2 and you get 14/30 + 9/10
Do the same thing with 9/10 but multiply it by 3
That gives you 14/30 + 27/30 which = 41/30 which is 1 and 11/30
So none of these answers are correct