Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 2/20 and 5/81

2/20 + 5/81 is 131/810.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 81 is 1620
  2. For the 1st fraction, since 20 × 81 = 1620,
    2/20 = 2 × 81/20 × 81 = 162/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    5/81 = 5 × 20/81 × 20 = 100/1620
  4. Add the two fractions:
    162/1620 + 100/1620 = 162 + 100/1620 = 262/1620
  5. After reducing the fraction, the answer is 131/810

MathStep (Works offline)

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

Related:

© everydaycalculation.com