Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 3/21 and 63/4

1st number: 3/21, 2nd number: 15 3/4

3/21 + 63/4 is 445/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 4 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    3/21 = 3 × 4/21 × 4 = 12/84
  3. Likewise, for the 2nd fraction, since 4 × 21 = 84,
    63/4 = 63 × 21/4 × 21 = 1323/84
  4. Add the two like fractions:
    12/84 + 1323/84 = 12 + 1323/84 = 1335/84
  5. 1335/84 simplified gives 445/28
  6. So, 3/21 + 63/4 = 445/28
    In mixed form: 1525/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com