Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/21 and 12/14

12/21 + 12/14 is 10/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 14 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    12/21 = 12 × 2/21 × 2 = 24/42
  3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
    12/14 = 12 × 3/14 × 3 = 36/42
  4. Add the two like fractions:
    24/42 + 36/42 = 24 + 36/42 = 60/42
  5. 60/42 simplified gives 10/7
  6. So, 12/21 + 12/14 = 10/7
    In mixed form: 13/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com