Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 2/21 from 3/2

1st number: 1 1/2, 2nd number: 2/21

3/2 - 2/21 is 59/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    3/2 = 3 × 21/2 × 21 = 63/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    2/21 = 2 × 2/21 × 2 = 4/42
  4. Subtract the two fractions:
    63/42 - 4/42 = 63 - 4/42 = 59/42
  5. In mixed form: 117/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com