Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/20 and 72/7

1st number: 4 4/20, 2nd number: 10 2/7

84/20 + 72/7 is 507/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 7 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    84/20 = 84 × 7/20 × 7 = 588/140
  3. Likewise, for the 2nd fraction, since 7 × 20 = 140,
    72/7 = 72 × 20/7 × 20 = 1440/140
  4. Add the two like fractions:
    588/140 + 1440/140 = 588 + 1440/140 = 2028/140
  5. 2028/140 simplified gives 507/35
  6. So, 84/20 + 72/7 = 507/35
    In mixed form: 1417/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com