Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/21 and 18/32

15/21 + 18/32 is 143/112.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 32 is 672

    Next, find the equivalent fraction of both fractional numbers with denominator 672
  2. For the 1st fraction, since 21 × 32 = 672,
    15/21 = 15 × 32/21 × 32 = 480/672
  3. Likewise, for the 2nd fraction, since 32 × 21 = 672,
    18/32 = 18 × 21/32 × 21 = 378/672
  4. Add the two like fractions:
    480/672 + 378/672 = 480 + 378/672 = 858/672
  5. 858/672 simplified gives 143/112
  6. So, 15/21 + 18/32 = 143/112
    In mixed form: 131/112

MathStep (Works offline)

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

Related:

© everydaycalculation.com