What is 9/9 minus 8/7?

Looking for the result of 9/9 - 8/7? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 9/9 by 8/7?

9 9 − 8 7 = (9 × 7) − (8 × 9) 9 × 7 = -9 63 = -1 7
  1. Multiply the numerator of the first term, with the denominator of the second term: 9 × 7 = 63
  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: 63 − 72 = -9
  4. Multiply both denominators together to form the new denominator: 9 × 7 = 63
  5. Combine the results to get the new fraction: -9/63
  6. Simplify the fraction (-9/63) by dividing both the numerator and the denominator by their GCD (9):
    • -9/9 = -1
    • 63/9 = 7
  7. This gives: -1/7.

The result of subtracting 9/9 and 8/7 is : -1/7 (or -0.14285714285714 in its decimal form)