Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/28 and 72/18

1st number: 2 25/28, 2nd number: 4 0/18

81/28 + 72/18 is 193/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 18 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 28 × 9 = 252,
    81/28 = 81 × 9/28 × 9 = 729/252
  3. Likewise, for the 2nd fraction, since 18 × 14 = 252,
    72/18 = 72 × 14/18 × 14 = 1008/252
  4. Add the two like fractions:
    729/252 + 1008/252 = 729 + 1008/252 = 1737/252
  5. 1737/252 simplified gives 193/28
  6. So, 81/28 + 72/18 = 193/28
    In mixed form: 625/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com