Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/12 and 12/15

1st number: 7 0/12, 2nd number: 12/15

84/12 + 12/15 is 39/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 15 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 12 × 5 = 60,
    84/12 = 84 × 5/12 × 5 = 420/60
  3. Likewise, for the 2nd fraction, since 15 × 4 = 60,
    12/15 = 12 × 4/15 × 4 = 48/60
  4. Add the two like fractions:
    420/60 + 48/60 = 420 + 48/60 = 468/60
  5. 468/60 simplified gives 39/5
  6. So, 84/12 + 12/15 = 39/5
    In mixed form: 74/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com