Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/28 and 28/30

12/28 + 28/30 is 143/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 30 is 420
  2. For the 1st fraction, since 28 × 15 = 420,
    12/28 = 12 × 15/28 × 15 = 180/420
  3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
    28/30 = 28 × 14/30 × 14 = 392/420
  4. Add the two fractions:
    180/420 + 392/420 = 180 + 392/420 = 572/420
  5. 572/420 simplified gives 143/105
  6. So, 12/28 + 28/30 = 143/105
    In mixed form: 138/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com