Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/12 and 20/8

1st number: 1 3/12, 2nd number: 2 4/8

15/12 + 20/8 is 15/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 8 is 24

    Next, find the equivalent fraction of both fractional numbers with denominator 24
  2. For the 1st fraction, since 12 × 2 = 24,
    15/12 = 15 × 2/12 × 2 = 30/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    20/8 = 20 × 3/8 × 3 = 60/24
  4. Add the two like fractions:
    30/24 + 60/24 = 30 + 60/24 = 90/24
  5. 90/24 simplified gives 15/4
  6. So, 15/12 + 20/8 = 15/4
    In mixed form: 33/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com