Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 8/21 and 7/63

8/21 + 7/63 is 31/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 63 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    8/21 = 8 × 3/21 × 3 = 24/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    7/63 = 7 × 1/63 × 1 = 7/63
  4. Add the two fractions:
    24/63 + 7/63 = 24 + 7/63 = 31/63
  5. So, 8/21 + 7/63 = 31/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com