Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 5/21 from 27/4

1st number: 6 3/4, 2nd number: 5/21

27/4 - 5/21 is 547/84.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 21 is 84
  2. For the 1st fraction, since 4 × 21 = 84,
    27/4 = 27 × 21/4 × 21 = 567/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    5/21 = 5 × 4/21 × 4 = 20/84
  4. Subtract the two fractions:
    567/84 - 20/84 = 567 - 20/84 = 547/84
  5. In mixed form: 643/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com