What is 10/8 minus 2/5?

Looking for the result of 10/8 - 2/5? Follow this step-by-step guide to understand how to subtract these two fractions.

How to subtract 10/8 by 2/5?

10 8 − 2 5 = (10 × 5) − (2 × 8) 8 × 5 = 34 40 = 17 20
  1. Multiply the numerator of the first term, with the denominator of the second term: 10 × 5 = 50
  2. Multiply the numerator of the second term, with the denominator of the first term: 2 × 8 = 16
  3. Subtract both of these results together to form the new numerator: 50 − 16 = 34
  4. Multiply both denominators together to form the new denominator: 8 × 5 = 40
  5. Combine the results to get the new fraction: 34/40
  6. Simplify the fraction (34/40) by dividing both the numerator and the denominator by their GCD (2):
    • 34/2 = 17
    • 40/2 = 20
  7. This gives: 17/20.

The result of subtracting 10/8 and 2/5 is : 17/20 (or 0.85 in its decimal form)