Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 27/54 and 30/42

27/54 + 30/42 is 17/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    27/54 = 27 × 7/54 × 7 = 189/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    30/42 = 30 × 9/42 × 9 = 270/378
  4. Add the two like fractions:
    189/378 + 270/378 = 189 + 270/378 = 459/378
  5. 459/378 simplified gives 17/14
  6. So, 27/54 + 30/42 = 17/14
    In mixed form: 13/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com