Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/14 and 84/18

1st number: 5 2/14, 2nd number: 4 12/18

72/14 + 84/18 is 206/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 14 × 9 = 126,
    72/14 = 72 × 9/14 × 9 = 648/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    84/18 = 84 × 7/18 × 7 = 588/126
  4. Add the two like fractions:
    648/126 + 588/126 = 648 + 588/126 = 1236/126
  5. 1236/126 simplified gives 206/21
  6. So, 72/14 + 84/18 = 206/21
    In mixed form: 917/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com