Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/4 and 42/27

1st number: 20 1/4, 2nd number: 1 15/27

81/4 + 42/27 is 785/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 27 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 4 × 27 = 108,
    81/4 = 81 × 27/4 × 27 = 2187/108
  3. Likewise, for the 2nd fraction, since 27 × 4 = 108,
    42/27 = 42 × 4/27 × 4 = 168/108
  4. Add the two like fractions:
    2187/108 + 168/108 = 2187 + 168/108 = 2355/108
  5. 2355/108 simplified gives 785/36
  6. So, 81/4 + 42/27 = 785/36
    In mixed form: 2129/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com