Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/3 and 63/10

1st number: 7 0/3, 2nd number: 6 3/10

21/3 + 63/10 is 133/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 10 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 3 × 10 = 30,
    21/3 = 21 × 10/3 × 10 = 210/30
  3. Likewise, for the 2nd fraction, since 10 × 3 = 30,
    63/10 = 63 × 3/10 × 3 = 189/30
  4. Add the two like fractions:
    210/30 + 189/30 = 210 + 189/30 = 399/30
  5. 399/30 simplified gives 133/10
  6. So, 21/3 + 63/10 = 133/10
    In mixed form: 133/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com