Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/30 and 15/72

28/30 + 15/72 is 137/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 72 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 30 × 12 = 360,
    28/30 = 28 × 12/30 × 12 = 336/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    15/72 = 15 × 5/72 × 5 = 75/360
  4. Add the two like fractions:
    336/360 + 75/360 = 336 + 75/360 = 411/360
  5. 411/360 simplified gives 137/120
  6. So, 28/30 + 15/72 = 137/120
    In mixed form: 117/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com