Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/21 and 54/36

1st number: 12/21, 2nd number: 1 18/36

12/21 + 54/36 is 29/14.

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,
    12/21 = 12 × 12/21 × 12 = 144/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    54/36 = 54 × 7/36 × 7 = 378/252
  4. Add the two like fractions:
    144/252 + 378/252 = 144 + 378/252 = 522/252
  5. 522/252 simplified gives 29/14
  6. So, 12/21 + 54/36 = 29/14
    In mixed form: 21/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com