Subtract:

Question

7/9-(-13/18)

Answer 1

Convert both denominators to 18 and remember that a negative times a negative is a positive.

I hope this helps. Thanks for asking.

Answer 2

Thank you. Now I know the answer is 1/18, but since the 7/9 is positive and the -13/18 is negative, is the answer negative or positive?

Answer 3

14/18 + 13/18 = 27/18 = 3/2 = 1 1/2

A negative times a negative is POSITIVE !!!!