Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 12/10 and 2/21

1st number: 1 2/10, 2nd number: 2/21

12/10 + 2/21 is 136/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 21 is 210
  2. For the 1st fraction, since 10 × 21 = 210,
    12/10 = 12 × 21/10 × 21 = 252/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    2/21 = 2 × 10/21 × 10 = 20/210
  4. Add the two fractions:
    252/210 + 20/210 = 252 + 20/210 = 272/210
  5. After reducing the fraction, the answer is 136/105
  6. In mixed form: 131/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com