What is 1/8 minus 9/10?

Looking for the result of 1/8 - 9/10? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 1/8 by 9/10?

1 8 − 9 10 = (1 × 10) − (9 × 8) 8 × 10 = -62 80 = -31 40
  1. Multiply the numerator of the first term, with the denominator of the second term: 1 × 10 = 10
  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: 10 − 72 = -62
  4. Multiply both denominators together to form the new denominator: 8 × 10 = 80
  5. Combine the results to get the new fraction: -62/80
  6. Simplify the fraction (-62/80) by dividing both the numerator and the denominator by their GCD (2):
    • -62/2 = -31
    • 80/2 = 40
  7. This gives: -31/40.

The result of subtracting 1/8 and 9/10 is : -31/40 (or -0.775 in its decimal form)