Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/9 and 20/63

7/9 + 20/63 is 23/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 63 is 63
  2. For the 1st fraction, since 9 × 7 = 63,
    7/9 = 7 × 7/9 × 7 = 49/63
  3. Likewise, for the 2nd fraction, since 63 × 1 = 63,
    20/63 = 20 × 1/63 × 1 = 20/63
  4. Add the two fractions:
    49/63 + 20/63 = 49 + 20/63 = 69/63
  5. 69/63 simplified gives 23/21
  6. So, 7/9 + 20/63 = 23/21
    In mixed form: 12/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com