Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 12/10 and 1/21

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

12/10 + 1/21 is 131/105.

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,
    1/21 = 1 × 10/21 × 10 = 10/210
  4. Add the two fractions:
    252/210 + 10/210 = 252 + 10/210 = 262/210
  5. After reducing the fraction, the answer is 131/105
  6. In mixed form: 126/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com