What is 3/9 minus 8/10?

Looking for the result of 3/9 - 8/10? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 3/9 by 8/10?

3 9 − 8 10 = (3 × 10) − (8 × 9) 9 × 10 = -42 90 = -7 15
  1. Multiply the numerator of the first term, with the denominator of the second term: 3 × 10 = 30
  2. Multiply the numerator of the second term, with the denominator of the first term: 8 × 9 = 72
  3. Subtract both of these results together to form the new numerator: 30 − 72 = -42
  4. Multiply both denominators together to form the new denominator: 9 × 10 = 90
  5. Combine the results to get the new fraction: -42/90
  6. Simplify the fraction (-42/90) by dividing both the numerator and the denominator by their GCD (6):
    • -42/6 = -7
    • 90/6 = 15
  7. This gives: -7/15.

The result of subtracting 3/9 and 8/10 is : -7/15 (or -0.46666666666667 in its decimal form)