Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/15 and 42/20

1st number: 12/15, 2nd number: 2 2/20

12/15 + 42/20 is 29/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    12/15 = 12 × 4/15 × 4 = 48/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    42/20 = 42 × 3/20 × 3 = 126/60
  4. Add the two like fractions:
    48/60 + 126/60 = 48 + 126/60 = 174/60
  5. 174/60 simplified gives 29/10
  6. So, 12/15 + 42/20 = 29/10
    In mixed form: 29/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com