Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/30 and 14/21

9/30 + 14/21 is 29/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    9/30 = 9 × 7/30 × 7 = 63/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    14/21 = 14 × 10/21 × 10 = 140/210
  4. Add the two like fractions:
    63/210 + 140/210 = 63 + 140/210 = 203/210
  5. 203/210 simplified gives 29/30
  6. So, 9/30 + 14/21 = 29/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com