What is 10/8 minus 9/7?

Looking for the result of 10/8 - 9/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 10/8 by 9/7?

10 8 − 9 7 = (10 × 7) − (9 × 8) 8 × 7 = -2 56 = -1 28
  1. Multiply the numerator of the first term, with the denominator of the second term: 10 × 7 = 70
  2. Multiply the numerator of the second term, with the denominator of the first term: 9 × 8 = 72
  3. Subtract both of these results together to form the new numerator: 70 − 72 = -2
  4. Multiply both denominators together to form the new denominator: 8 × 7 = 56
  5. Combine the results to get the new fraction: -2/56
  6. Simplify the fraction (-2/56) by dividing both the numerator and the denominator by their GCD (2):
    • -2/2 = -1
    • 56/2 = 28
  7. This gives: -1/28.

The result of subtracting 10/8 and 9/7 is : -1/28 (or -0.035714285714286 in its decimal form)