Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 20/56 from 12/15

12/15 - 20/56 is 31/70.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 56 is 840
  2. For the 1st fraction, since 15 × 56 = 840,
    12/15 = 12 × 56/15 × 56 = 672/840
  3. Likewise, for the 2nd fraction, since 56 × 15 = 840,
    20/56 = 20 × 15/56 × 15 = 300/840
  4. Subtract the two fractions:
    672/840 - 300/840 = 672 - 300/840 = 372/840
  5. After reducing the fraction, the answer is 31/70

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com