Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/81 and 3/40

30/81 + 3/40 is 481/1080.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 40 is 3240

    Next, find the equivalent fraction of both fractional numbers with denominator 3240
  2. For the 1st fraction, since 81 × 40 = 3240,
    30/81 = 30 × 40/81 × 40 = 1200/3240
  3. Likewise, for the 2nd fraction, since 40 × 81 = 3240,
    3/40 = 3 × 81/40 × 81 = 243/3240
  4. Add the two like fractions:
    1200/3240 + 243/3240 = 1200 + 243/3240 = 1443/3240
  5. 1443/3240 simplified gives 481/1080
  6. So, 30/81 + 3/40 = 481/1080

MathStep (Works offline)

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

Related:

© everydaycalculation.com