Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 3/21 and 12/16

3/21 + 12/16 is 25/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 21 × 16 = 336,
    3/21 = 3 × 16/21 × 16 = 48/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    12/16 = 12 × 21/16 × 21 = 252/336
  4. Add the two like fractions:
    48/336 + 252/336 = 48 + 252/336 = 300/336
  5. 300/336 simplified gives 25/28
  6. So, 3/21 + 12/16 = 25/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com