What is 8/10 minus 9/4?

Looking for the result of 8/10 - 9/4? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 8/10 by 9/4?

8 10 − 9 4 = (8 × 4) − (9 × 10) 10 × 4 = -58 40 = -29 20
  1. Multiply the numerator of the first term, with the denominator of the second term: 8 × 4 = 32
  2. Multiply the numerator of the second term, with the denominator of the first term: 9 × 10 = 90
  3. Subtract both of these results together to form the new numerator: 32 − 90 = -58
  4. Multiply both denominators together to form the new denominator: 10 × 4 = 40
  5. Combine the results to get the new fraction: -58/40
  6. Simplify the fraction (-58/40) by dividing both the numerator and the denominator by their GCD (2):
    • -58/2 = -29
    • 40/2 = 20
  7. This gives: -29/20.

The result of subtracting 8/10 and 9/4 is : -29/20 (or -1.45 in its decimal form)