Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/84 and 81/56

1st number: 15/84, 2nd number: 1 25/56

15/84 + 81/56 is 13/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 56 is 168

    Next, find the equivalent fraction of both fractional numbers with denominator 168
  2. For the 1st fraction, since 84 × 2 = 168,
    15/84 = 15 × 2/84 × 2 = 30/168
  3. Likewise, for the 2nd fraction, since 56 × 3 = 168,
    81/56 = 81 × 3/56 × 3 = 243/168
  4. Add the two like fractions:
    30/168 + 243/168 = 30 + 243/168 = 273/168
  5. 273/168 simplified gives 13/8
  6. So, 15/84 + 81/56 = 13/8
    In mixed form: 15/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com