Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 36/8 and 81/20

1st number: 4 4/8, 2nd number: 4 1/20

36/8 + 81/20 is 171/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 20 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 8 × 5 = 40,
    36/8 = 36 × 5/8 × 5 = 180/40
  3. Likewise, for the 2nd fraction, since 20 × 2 = 40,
    81/20 = 81 × 2/20 × 2 = 162/40
  4. Add the two like fractions:
    180/40 + 162/40 = 180 + 162/40 = 342/40
  5. 342/40 simplified gives 171/20
  6. So, 36/8 + 81/20 = 171/20
    In mixed form: 811/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com