Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/36 and 2/42

21/36 + 2/42 is 53/84.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 42 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 36 × 7 = 252,
    21/36 = 21 × 7/36 × 7 = 147/252
  3. Likewise, for the 2nd fraction, since 42 × 6 = 252,
    2/42 = 2 × 6/42 × 6 = 12/252
  4. Add the two like fractions:
    147/252 + 12/252 = 147 + 12/252 = 159/252
  5. 159/252 simplified gives 53/84
  6. So, 21/36 + 2/42 = 53/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com