Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/7 and 20/18

1st number: 1 2/7, 2nd number: 1 2/18

9/7 + 20/18 is 151/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 7 × 18 = 126,
    9/7 = 9 × 18/7 × 18 = 162/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    20/18 = 20 × 7/18 × 7 = 140/126
  4. Add the two like fractions:
    162/126 + 140/126 = 162 + 140/126 = 302/126
  5. 302/126 simplified gives 151/63
  6. So, 9/7 + 20/18 = 151/63
    In mixed form: 225/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com