Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 4/20 from 16/21

16/21 - 4/20 is 59/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    16/21 = 16 × 20/21 × 20 = 320/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    4/20 = 4 × 21/20 × 21 = 84/420
  4. Subtract the two fractions:
    320/420 - 84/420 = 320 - 84/420 = 236/420
  5. After reducing the fraction, the answer is 59/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com