Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/20 and 9/18

7/20 + 9/18 is 17/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    7/20 = 7 × 9/20 × 9 = 63/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    9/18 = 9 × 10/18 × 10 = 90/180
  4. Add the two like fractions:
    63/180 + 90/180 = 63 + 90/180 = 153/180
  5. 153/180 simplified gives 17/20
  6. So, 7/20 + 9/18 = 17/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com