Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 4/21 and 27/54

4/21 + 27/54 is 29/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 54 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 21 × 18 = 378,
    4/21 = 4 × 18/21 × 18 = 72/378
  3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
    27/54 = 27 × 7/54 × 7 = 189/378
  4. Add the two like fractions:
    72/378 + 189/378 = 72 + 189/378 = 261/378
  5. 261/378 simplified gives 29/42
  6. So, 4/21 + 27/54 = 29/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com