Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/7 and 84/72

1st number: 1 2/7, 2nd number: 1 12/72

9/7 + 84/72 is 103/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 7 × 72 = 504,
    9/7 = 9 × 72/7 × 72 = 648/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    84/72 = 84 × 7/72 × 7 = 588/504
  4. Add the two like fractions:
    648/504 + 588/504 = 648 + 588/504 = 1236/504
  5. 1236/504 simplified gives 103/42
  6. So, 9/7 + 84/72 = 103/42
    In mixed form: 219/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com