Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/42 and 12/15

1st number: 2 0/42, 2nd number: 12/15

84/42 + 12/15 is 14/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 15 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 42 × 5 = 210,
    84/42 = 84 × 5/42 × 5 = 420/210
  3. Likewise, for the 2nd fraction, since 15 × 14 = 210,
    12/15 = 12 × 14/15 × 14 = 168/210
  4. Add the two like fractions:
    420/210 + 168/210 = 420 + 168/210 = 588/210
  5. 588/210 simplified gives 14/5
  6. So, 84/42 + 12/15 = 14/5
    In mixed form: 24/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com