Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/81 and 4/40

1/81 + 4/40 is 91/810.

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,
    1/81 = 1 × 40/81 × 40 = 40/3240
  3. Likewise, for the 2nd fraction, since 40 × 81 = 3240,
    4/40 = 4 × 81/40 × 81 = 324/3240
  4. Add the two like fractions:
    40/3240 + 324/3240 = 40 + 324/3240 = 364/3240
  5. 364/3240 simplified gives 91/810
  6. So, 1/81 + 4/40 = 91/810

MathStep (Works offline)

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

Related:

© everydaycalculation.com