Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/28 and 45/90

15/28 + 45/90 is 29/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 90 is 1260
  2. For the 1st fraction, since 28 × 45 = 1260,
    15/28 = 15 × 45/28 × 45 = 675/1260
  3. Likewise, for the 2nd fraction, since 90 × 14 = 1260,
    45/90 = 45 × 14/90 × 14 = 630/1260
  4. Add the two fractions:
    675/1260 + 630/1260 = 675 + 630/1260 = 1305/1260
  5. After reducing the fraction, the answer is 29/28
  6. In mixed form: 11/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com