Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 25/21 and 2/7

1st number: 1 4/21, 2nd number: 2/7

25/21 + 2/7 is 31/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 7 is 21
  2. For the 1st fraction, since 21 × 1 = 21,
    25/21 = 25 × 1/21 × 1 = 25/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    2/7 = 2 × 3/7 × 3 = 6/21
  4. Add the two fractions:
    25/21 + 6/21 = 25 + 6/21 = 31/21
  5. In mixed form: 110/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com