Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 14/21 and 21/9

1st number: 14/21, 2nd number: 2 3/9

14/21 + 21/9 is 3/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    14/21 = 14 × 3/21 × 3 = 42/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    21/9 = 21 × 7/9 × 7 = 147/63
  4. Add the two fractions:
    42/63 + 147/63 = 42 + 147/63 = 189/63
  5. 189/63 simplified gives 3/1
  6. So, 14/21 + 21/9 = 3/1

MathStep (Works offline)

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

Related:

© everydaycalculation.com