Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/7 and 4/81

5/7 + 4/81 is 433/567.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 81 is 567

    Next, find the equivalent fraction of both fractional numbers with denominator 567
  2. For the 1st fraction, since 7 × 81 = 567,
    5/7 = 5 × 81/7 × 81 = 405/567
  3. Likewise, for the 2nd fraction, since 81 × 7 = 567,
    4/81 = 4 × 7/81 × 7 = 28/567
  4. Add the two like fractions:
    405/567 + 28/567 = 405 + 28/567 = 433/567
  5. So, 5/7 + 4/81 = 433/567

MathStep (Works offline)

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

Related:

© everydaycalculation.com