Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/40 and 63/81

1/40 + 63/81 is 289/360.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 3240
  2. For the 1st fraction, since 40 × 81 = 3240,
    1/40 = 1 × 81/40 × 81 = 81/3240
  3. Likewise, for the 2nd fraction, since 81 × 40 = 3240,
    63/81 = 63 × 40/81 × 40 = 2520/3240
  4. Add the two like fractions:
    81/3240 + 2520/3240 = 81 + 2520/3240 = 2601/3240
  5. 2601/3240 simplified gives 289/360
  6. So, 1/40 + 63/81 = 289/360

MathStep (Works offline)

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

Related:

© everydaycalculation.com