What is 1/8 minus 1/7?

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

How to subtract 1/8 by 1/7?

1 8 − 1 7 = (1 × 7) − (1 × 8) 8 × 7 = -1 56
  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: 1 × 8 = 8
  3. Subtract both of these results together to form the new numerator: 7 − 8 = -1
  4. Multiply both denominators together to form the new denominator: 8 × 7 = 56
  5. Combine the results to get the new fraction: -1/56

The result of subtracting 1/8 and 1/7 is : -1/56 (or -0.017857142857143 in its decimal form)