Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/8 and 54/15

1st number: 3 4/8, 2nd number: 3 9/15

28/8 + 54/15 is 71/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 15 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 8 × 15 = 120,
    28/8 = 28 × 15/8 × 15 = 420/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    54/15 = 54 × 8/15 × 8 = 432/120
  4. Add the two like fractions:
    420/120 + 432/120 = 420 + 432/120 = 852/120
  5. 852/120 simplified gives 71/10
  6. So, 28/8 + 54/15 = 71/10
    In mixed form: 71/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com