Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/3 and 25/21

1st number: 4 0/3, 2nd number: 1 4/21

12/3 + 25/21 is 109/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 21 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    12/3 = 12 × 7/3 × 7 = 84/21
  3. Likewise, for the 2nd fraction, since 21 × 1 = 21,
    25/21 = 25 × 1/21 × 1 = 25/21
  4. Add the two like fractions:
    84/21 + 25/21 = 84 + 25/21 = 109/21
  5. So, 12/3 + 25/21 = 109/21
    In mixed form: 54/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com