Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 7/21 and 6/28

7/21 + 6/28 is 23/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 28 is 84
  2. For the 1st fraction, since 21 × 4 = 84,
    7/21 = 7 × 4/21 × 4 = 28/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    6/28 = 6 × 3/28 × 3 = 18/84
  4. Add the two fractions:
    28/84 + 18/84 = 28 + 18/84 = 46/84
  5. After reducing the fraction, the answer is 23/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com