Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/36 and 8/21

1st number: 1 9/36, 2nd number: 8/21

45/36 + 8/21 is 137/84.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 36 × 7 = 252,
    45/36 = 45 × 7/36 × 7 = 315/252
  3. Likewise, for the 2nd fraction, since 21 × 12 = 252,
    8/21 = 8 × 12/21 × 12 = 96/252
  4. Add the two like fractions:
    315/252 + 96/252 = 315 + 96/252 = 411/252
  5. 411/252 simplified gives 137/84
  6. So, 45/36 + 8/21 = 137/84
    In mixed form: 153/84

MathStep (Works offline)

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

Related:

© everydaycalculation.com