Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/72 and 1/15

21/72 + 1/15 is 43/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 15 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    21/72 = 21 × 5/72 × 5 = 105/360
  3. Likewise, for the 2nd fraction, since 15 × 24 = 360,
    1/15 = 1 × 24/15 × 24 = 24/360
  4. Add the two like fractions:
    105/360 + 24/360 = 105 + 24/360 = 129/360
  5. 129/360 simplified gives 43/120
  6. So, 21/72 + 1/15 = 43/120

MathStep (Works offline)

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

Related:

© everydaycalculation.com