Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/14 and 15/42

1st number: 5 2/14, 2nd number: 15/42

72/14 + 15/42 is 11/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 14 × 3 = 42,
    72/14 = 72 × 3/14 × 3 = 216/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    15/42 = 15 × 1/42 × 1 = 15/42
  4. Add the two like fractions:
    216/42 + 15/42 = 216 + 15/42 = 231/42
  5. 231/42 simplified gives 11/2
  6. So, 72/14 + 15/42 = 11/2
    In mixed form: 51/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com