Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 8/21 and 15/72

8/21 + 15/72 is 33/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 21 × 24 = 504,
    8/21 = 8 × 24/21 × 24 = 192/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    15/72 = 15 × 7/72 × 7 = 105/504
  4. Add the two like fractions:
    192/504 + 105/504 = 192 + 105/504 = 297/504
  5. 297/504 simplified gives 33/56
  6. So, 8/21 + 15/72 = 33/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com