What is 10/8 minus 9/5?

Looking for the result of 10/8 - 9/5? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 10/8 by 9/5?

10 8 − 9 5 = (10 × 5) − (9 × 8) 8 × 5 = -22 40 = -11 20
  1. Multiply the numerator of the first term, with the denominator of the second term: 10 × 5 = 50
  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: 50 − 72 = -22
  4. Multiply both denominators together to form the new denominator: 8 × 5 = 40
  5. Combine the results to get the new fraction: -22/40
  6. Simplify the fraction (-22/40) by dividing both the numerator and the denominator by their GCD (2):
    • -22/2 = -11
    • 40/2 = 20
  7. This gives: -11/20.

The result of subtracting 10/8 and 9/5 is : -11/20 (or -0.55 in its decimal form)