Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/18 and 15/21

1/18 + 15/21 is 97/126.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    1/18 = 1 × 7/18 × 7 = 7/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    15/21 = 15 × 6/21 × 6 = 90/126
  4. Add the two fractions:
    7/126 + 90/126 = 7 + 90/126 = 97/126
  5. So, 1/18 + 15/21 = 97/126

MathStep (Works offline)

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

Related:

© everydaycalculation.com