What is 5/7 minus 8/7?

Looking for the result of 5/7 - 8/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 5/7 by 8/7?

5 7 − 8 7 = (5 × 7) − (8 × 7) 7 × 7 = -21 49 = -3 7
  1. Multiply the numerator of the first term, with the denominator of the second term: 5 × 7 = 35
  2. Multiply the numerator of the second term, with the denominator of the first term: 8 × 7 = 56
  3. Subtract both of these results together to form the new numerator: 35 − 56 = -21
  4. Multiply both denominators together to form the new denominator: 7 × 7 = 49
  5. Combine the results to get the new fraction: -21/49
  6. Simplify the fraction (-21/49) by dividing both the numerator and the denominator by their GCD (7):
    • -21/7 = -3
    • 49/7 = 7
  7. This gives: -3/7.

The result of subtracting 5/7 and 8/7 is : -3/7 (or -0.42857142857143 in its decimal form)