Posted by norma on Sunday, July 4, 2010 at 8:14pm.
Can anyone show me how to worj this I am lost Perform the subtraction :7/9(15/8) thank you in advance

math  Ms. Sue, Sunday, July 4, 2010 at 8:20pm
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)