Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/3 and 63/84

1st number: 7 0/3, 2nd number: 63/84

21/3 + 63/84 is 31/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 3 × 28 = 84,
    21/3 = 21 × 28/3 × 28 = 588/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    63/84 = 63 × 1/84 × 1 = 63/84
  4. Add the two like fractions:
    588/84 + 63/84 = 588 + 63/84 = 651/84
  5. 651/84 simplified gives 31/4
  6. So, 21/3 + 63/84 = 31/4
    In mixed form: 73/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com