Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/60 and 9/8

1st number: 15/60, 2nd number: 1 1/8

15/60 + 9/8 is 11/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 8 is 120
  2. For the 1st fraction, since 60 × 2 = 120,
    15/60 = 15 × 2/60 × 2 = 30/120
  3. Likewise, for the 2nd fraction, since 8 × 15 = 120,
    9/8 = 9 × 15/8 × 15 = 135/120
  4. Add the two fractions:
    30/120 + 135/120 = 30 + 135/120 = 165/120
  5. 165/120 simplified gives 11/8
  6. So, 15/60 + 9/8 = 11/8
    In mixed form: 13/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com