Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/72 and 1/81

4/72 + 1/81 is 11/162.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 81 is 648

    Next, find the equivalent fraction of both fractional numbers with denominator 648
  2. For the 1st fraction, since 72 × 9 = 648,
    4/72 = 4 × 9/72 × 9 = 36/648
  3. Likewise, for the 2nd fraction, since 81 × 8 = 648,
    1/81 = 1 × 8/81 × 8 = 8/648
  4. Add the two like fractions:
    36/648 + 8/648 = 36 + 8/648 = 44/648
  5. 44/648 simplified gives 11/162
  6. So, 4/72 + 1/81 = 11/162

MathStep (Works offline)

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

Related:

© everydaycalculation.com