Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 8/21 and 15/36

8/21 + 15/36 is 67/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    8/21 = 8 × 12/21 × 12 = 96/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    15/36 = 15 × 7/36 × 7 = 105/252
  4. Add the two like fractions:
    96/252 + 105/252 = 96 + 105/252 = 201/252
  5. 201/252 simplified gives 67/84
  6. So, 8/21 + 15/36 = 67/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com