Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/30 and 10/90

15/30 + 10/90 is 11/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 90 is 90
  2. For the 1st fraction, since 30 × 3 = 90,
    15/30 = 15 × 3/30 × 3 = 45/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    10/90 = 10 × 1/90 × 1 = 10/90
  4. Add the two fractions:
    45/90 + 10/90 = 45 + 10/90 = 55/90
  5. After reducing the fraction, the answer is 11/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com