Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/15 and 70/8

1st number: 5 9/15, 2nd number: 8 6/8

84/15 + 70/8 is 287/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 8 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 15 × 8 = 120,
    84/15 = 84 × 8/15 × 8 = 672/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    70/8 = 70 × 15/8 × 15 = 1050/120
  4. Add the two like fractions:
    672/120 + 1050/120 = 672 + 1050/120 = 1722/120
  5. 1722/120 simplified gives 287/20
  6. So, 84/15 + 70/8 = 287/20
    In mixed form: 147/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com