What is 3/9 minus 5/7?

Looking for the result of 3/9 - 5/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 3/9 by 5/7?

3 9 − 5 7 = (3 × 7) − (5 × 9) 9 × 7 = -24 63 = -8 21
  1. Multiply the numerator of the first term, with the denominator of the second term: 3 × 7 = 21
  2. Multiply the numerator of the second term, with the denominator of the first term: 5 × 9 = 45
  3. Subtract both of these results together to form the new numerator: 21 − 45 = -24
  4. Multiply both denominators together to form the new denominator: 9 × 7 = 63
  5. Combine the results to get the new fraction: -24/63
  6. Simplify the fraction (-24/63) by dividing both the numerator and the denominator by their GCD (3):
    • -24/3 = -8
    • 63/3 = 21
  7. This gives: -8/21.

The result of subtracting 3/9 and 5/7 is : -8/21 (or -0.38095238095238 in its decimal form)