Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/18 and 7/15

12/18 + 7/15 is 17/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 15 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    12/18 = 12 × 5/18 × 5 = 60/90
  3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
    7/15 = 7 × 6/15 × 6 = 42/90
  4. Add the two like fractions:
    60/90 + 42/90 = 60 + 42/90 = 102/90
  5. 102/90 simplified gives 17/15
  6. So, 12/18 + 7/15 = 17/15
    In mixed form: 12/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com