Asked by norma

Can anyone show me how to worj this I am lost Perform the subtraction :7/9-(15/8) thank you in advance
Answered by Ms. Sue
First we need to find the common denominator.

7/9 = 56/72
15/8 = 135/72

56/72 - (135/72) = -(79/72) = -(1 7/72)