Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 16/28 and 21/63

16/28 + 21/63 is 19/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 63 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    16/28 = 16 × 9/28 × 9 = 144/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    21/63 = 21 × 4/63 × 4 = 84/252
  4. Add the two like fractions:
    144/252 + 84/252 = 144 + 84/252 = 228/252
  5. 228/252 simplified gives 19/21
  6. So, 16/28 + 21/63 = 19/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com