Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/42 and 5/16

21/42 + 5/16 is 13/16.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 16 is 336

    Next, find the equivalent fraction of both fractional numbers with denominator 336
  2. For the 1st fraction, since 42 × 8 = 336,
    21/42 = 21 × 8/42 × 8 = 168/336
  3. Likewise, for the 2nd fraction, since 16 × 21 = 336,
    5/16 = 5 × 21/16 × 21 = 105/336
  4. Add the two like fractions:
    168/336 + 105/336 = 168 + 105/336 = 273/336
  5. 273/336 simplified gives 13/16
  6. So, 21/42 + 5/16 = 13/16

MathStep (Works offline)

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

Related:

© everydaycalculation.com