Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/5 and 7/81

1/5 + 7/81 is 116/405.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 5 × 81 = 405,
    1/5 = 1 × 81/5 × 81 = 81/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    7/81 = 7 × 5/81 × 5 = 35/405
  4. Add the two like fractions:
    81/405 + 35/405 = 81 + 35/405 = 116/405
  5. So, 1/5 + 7/81 = 116/405

MathStep (Works offline)

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

Related:

© everydaycalculation.com