What is 1/3 minus 8/7?

Looking for the result of 1/3 - 8/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 1/3 by 8/7?

1 3 − 8 7 = (1 × 7) − (8 × 3) 3 × 7 = -17 21
  1. Multiply the numerator of the first term, with the denominator of the second term: 1 × 7 = 7
  2. Multiply the numerator of the second term, with the denominator of the first term: 8 × 3 = 24
  3. Subtract both of these results together to form the new numerator: 7 − 24 = -17
  4. Multiply both denominators together to form the new denominator: 3 × 7 = 21
  5. Combine the results to get the new fraction: -17/21

The result of subtracting 1/3 and 8/7 is : -17/21 (or -0.80952380952381 in its decimal form)