Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/16 and 18/21

4/16 + 18/21 is 31/28.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 16 × 21 = 336,
    4/16 = 4 × 21/16 × 21 = 84/336
  3. Likewise, for the 2nd fraction, since 21 × 16 = 336,
    18/21 = 18 × 16/21 × 16 = 288/336
  4. Add the two like fractions:
    84/336 + 288/336 = 84 + 288/336 = 372/336
  5. 372/336 simplified gives 31/28
  6. So, 4/16 + 18/21 = 31/28
    In mixed form: 13/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com