Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/4 and 20/81

1/4 + 20/81 is 161/324.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 81 is 324
  2. For the 1st fraction, since 4 × 81 = 324,
    1/4 = 1 × 81/4 × 81 = 81/324
  3. Likewise, for the 2nd fraction, since 81 × 4 = 324,
    20/81 = 20 × 4/81 × 4 = 80/324
  4. Add the two fractions:
    81/324 + 80/324 = 81 + 80/324 = 161/324
  5. So, 1/4 + 20/81 = 161/324

MathStep (Works offline)

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

Related:

© everydaycalculation.com