Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/15 and 12/16

1st number: 1 5/15, 2nd number: 12/16

20/15 + 12/16 is 25/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 16 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 15 × 16 = 240,
    20/15 = 20 × 16/15 × 16 = 320/240
  3. Likewise, for the 2nd fraction, since 16 × 15 = 240,
    12/16 = 12 × 15/16 × 15 = 180/240
  4. Add the two like fractions:
    320/240 + 180/240 = 320 + 180/240 = 500/240
  5. 500/240 simplified gives 25/12
  6. So, 20/15 + 12/16 = 25/12
    In mixed form: 21/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com