Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/36 and 45/42

1st number: 2 0/36, 2nd number: 1 3/42

72/36 + 45/42 is 43/14.

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,
    72/36 = 72 × 7/36 × 7 = 504/252
  3. Likewise, for the 2nd fraction, since 42 × 6 = 252,
    45/42 = 45 × 6/42 × 6 = 270/252
  4. Add the two like fractions:
    504/252 + 270/252 = 504 + 270/252 = 774/252
  5. 774/252 simplified gives 43/14
  6. So, 72/36 + 45/42 = 43/14
    In mixed form: 31/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com