How do you subtract 7 over 9 from 5 over 6?

Answer 1

To subtract ninths from sixths, you have to first convert them both to 54ths. So, 7/9 x 6/6 = 42/54 and 5/6 x 9/9 = 45/54. Now you can do the subtraction. 45 - 42 = 3. So the answer is 3/54.