Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 63/10 and 70/21

1st number: 6 3/10, 2nd number: 3 7/21

63/10 + 70/21 is 289/30.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 10 × 21 = 210,
    63/10 = 63 × 21/10 × 21 = 1323/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    70/21 = 70 × 10/21 × 10 = 700/210
  4. Add the two like fractions:
    1323/210 + 700/210 = 1323 + 700/210 = 2023/210
  5. 2023/210 simplified gives 289/30
  6. So, 63/10 + 70/21 = 289/30
    In mixed form: 919/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com