Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/27 and 5/20

21/27 + 5/20 is 37/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 20 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    21/27 = 21 × 20/27 × 20 = 420/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    5/20 = 5 × 27/20 × 27 = 135/540
  4. Add the two like fractions:
    420/540 + 135/540 = 420 + 135/540 = 555/540
  5. 555/540 simplified gives 37/36
  6. So, 21/27 + 5/20 = 37/36
    In mixed form: 11/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com