Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/30 and 15/14

1st number: 21/30, 2nd number: 1 1/14

21/30 + 15/14 is 62/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 14 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    21/30 = 21 × 7/30 × 7 = 147/210
  3. Likewise, for the 2nd fraction, since 14 × 15 = 210,
    15/14 = 15 × 15/14 × 15 = 225/210
  4. Add the two like fractions:
    147/210 + 225/210 = 147 + 225/210 = 372/210
  5. 372/210 simplified gives 62/35
  6. So, 21/30 + 15/14 = 62/35
    In mixed form: 127/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com