Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/42 and 15/9

1st number: 28/42, 2nd number: 1 6/9

28/42 + 15/9 is 7/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 9 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 42 × 3 = 126,
    28/42 = 28 × 3/42 × 3 = 84/126
  3. Likewise, for the 2nd fraction, since 9 × 14 = 126,
    15/9 = 15 × 14/9 × 14 = 210/126
  4. Add the two like fractions:
    84/126 + 210/126 = 84 + 210/126 = 294/126
  5. 294/126 simplified gives 7/3
  6. So, 28/42 + 15/9 = 7/3
    In mixed form: 21/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com