Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/72 and 15/84

18/72 + 15/84 is 3/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 84 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    18/72 = 18 × 7/72 × 7 = 126/504
  3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
    15/84 = 15 × 6/84 × 6 = 90/504
  4. Add the two like fractions:
    126/504 + 90/504 = 126 + 90/504 = 216/504
  5. 216/504 simplified gives 3/7
  6. So, 18/72 + 15/84 = 3/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com