Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/35 and 4/81

28/35 + 4/81 is 344/405.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 35 and 81 is 2835

    Next, find the equivalent fraction of both fractional numbers with denominator 2835
  2. For the 1st fraction, since 35 × 81 = 2835,
    28/35 = 28 × 81/35 × 81 = 2268/2835
  3. Likewise, for the 2nd fraction, since 81 × 35 = 2835,
    4/81 = 4 × 35/81 × 35 = 140/2835
  4. Add the two like fractions:
    2268/2835 + 140/2835 = 2268 + 140/2835 = 2408/2835
  5. 2408/2835 simplified gives 344/405
  6. So, 28/35 + 4/81 = 344/405

MathStep (Works offline)

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

Related:

© everydaycalculation.com