Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 2/21 and 80/10

1st number: 2/21, 2nd number: 8 0/10

2/21 + 80/10 is 170/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    2/21 = 2 × 10/21 × 10 = 20/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    80/10 = 80 × 21/10 × 21 = 1680/210
  4. Add the two fractions:
    20/210 + 1680/210 = 20 + 1680/210 = 1700/210
  5. After reducing the fraction, the answer is 170/21
  6. In mixed form: 82/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com