What is 4/8 minus 9/10?

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

How to subtract 4/8 by 9/10?

4 8 − 9 10 = (4 × 10) − (9 × 8) 8 × 10 = -32 80 = -2 5
  1. Multiply the numerator of the first term, with the denominator of the second term: 4 × 10 = 40
  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: 40 − 72 = -32
  4. Multiply both denominators together to form the new denominator: 8 × 10 = 80
  5. Combine the results to get the new fraction: -32/80
  6. Simplify the fraction (-32/80) by dividing both the numerator and the denominator by their GCD (16):
    • -32/16 = -2
    • 80/16 = 5
  7. This gives: -2/5.

The result of subtracting 4/8 and 9/10 is : -2/5 (or -0.4 in its decimal form)