Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 18/81 and 2/5

18/81 + 2/5 is 28/45.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 5 is 405
  2. For the 1st fraction, since 81 × 5 = 405,
    18/81 = 18 × 5/81 × 5 = 90/405
  3. Likewise, for the 2nd fraction, since 5 × 81 = 405,
    2/5 = 2 × 81/5 × 81 = 162/405
  4. Add the two fractions:
    90/405 + 162/405 = 90 + 162/405 = 252/405
  5. After reducing the fraction, the answer is 28/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com