Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 6/20 and 81/90

6/20 + 81/90 is 6/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    6/20 = 6 × 9/20 × 9 = 54/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    81/90 = 81 × 2/90 × 2 = 162/180
  4. Add the two like fractions:
    54/180 + 162/180 = 54 + 162/180 = 216/180
  5. 216/180 simplified gives 6/5
  6. So, 6/20 + 81/90 = 6/5
    In mixed form: 11/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com