What is 3/7 minus 8/7?

Looking for the result of 3/7 - 8/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 3/7 by 8/7?

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

The result of subtracting 3/7 and 8/7 is : -5/7 (or -0.71428571428571 in its decimal form)