Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/12 and 16/20

1st number: 3 9/12, 2nd number: 16/20

45/12 + 16/20 is 91/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    45/12 = 45 × 5/12 × 5 = 225/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    16/20 = 16 × 3/20 × 3 = 48/60
  4. Add the two like fractions:
    225/60 + 48/60 = 225 + 48/60 = 273/60
  5. 273/60 simplified gives 91/20
  6. So, 45/12 + 16/20 = 91/20
    In mixed form: 411/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com