Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/27 and 28/20

1st number: 18/27, 2nd number: 1 8/20

18/27 + 28/20 is 31/15.

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,
    18/27 = 18 × 20/27 × 20 = 360/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    28/20 = 28 × 27/20 × 27 = 756/540
  4. Add the two like fractions:
    360/540 + 756/540 = 360 + 756/540 = 1116/540
  5. 1116/540 simplified gives 31/15
  6. So, 18/27 + 28/20 = 31/15
    In mixed form: 21/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com