Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/90 and 5/15

81/90 + 5/15 is 37/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    81/90 = 81 × 1/90 × 1 = 81/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    5/15 = 5 × 6/15 × 6 = 30/90
  4. Add the two like fractions:
    81/90 + 30/90 = 81 + 30/90 = 111/90
  5. 111/90 simplified gives 37/30
  6. So, 81/90 + 5/15 = 37/30
    In mixed form: 17/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com