Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/28 and 27/40

15/28 + 27/40 is 339/280.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 40 is 280
  2. For the 1st fraction, since 28 × 10 = 280,
    15/28 = 15 × 10/28 × 10 = 150/280
  3. Likewise, for the 2nd fraction, since 40 × 7 = 280,
    27/40 = 27 × 7/40 × 7 = 189/280
  4. Add the two fractions:
    150/280 + 189/280 = 150 + 189/280 = 339/280
  5. In mixed form: 159/280

MathStep (Works offline)

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

Related:

© everydaycalculation.com