Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 20/84 from 35/15

1st number: 2 5/15, 2nd number: 20/84

35/15 - 20/84 is 44/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 84 is 420
  2. For the 1st fraction, since 15 × 28 = 420,
    35/15 = 35 × 28/15 × 28 = 980/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    20/84 = 20 × 5/84 × 5 = 100/420
  4. Subtract the two fractions:
    980/420 - 100/420 = 980 - 100/420 = 880/420
  5. After reducing the fraction, the answer is 44/21
  6. In mixed form: 22/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com