Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/12 and 21/9

1st number: 4/12, 2nd number: 2 3/9

4/12 + 21/9 is 8/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 9 is 36
  2. For the 1st fraction, since 12 × 3 = 36,
    4/12 = 4 × 3/12 × 3 = 12/36
  3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
    21/9 = 21 × 4/9 × 4 = 84/36
  4. Add the two fractions:
    12/36 + 84/36 = 12 + 84/36 = 96/36
  5. 96/36 simplified gives 8/3
  6. So, 4/12 + 21/9 = 8/3
    In mixed form: 22/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com