Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 24/20 and 15/21

1st number: 1 4/20, 2nd number: 15/21

24/20 + 15/21 is 67/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 21 is 420
  2. For the 1st fraction, since 20 × 21 = 420,
    24/20 = 24 × 21/20 × 21 = 504/420
  3. Likewise, for the 2nd fraction, since 21 × 20 = 420,
    15/21 = 15 × 20/21 × 20 = 300/420
  4. Add the two fractions:
    504/420 + 300/420 = 504 + 300/420 = 804/420
  5. After reducing the fraction, the answer is 67/35
  6. In mixed form: 132/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com