Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/20 and 21/6

1st number: 18/20, 2nd number: 3 3/6

18/20 + 21/6 is 22/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 6 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    18/20 = 18 × 3/20 × 3 = 54/60
  3. Likewise, for the 2nd fraction, since 6 × 10 = 60,
    21/6 = 21 × 10/6 × 10 = 210/60
  4. Add the two like fractions:
    54/60 + 210/60 = 54 + 210/60 = 264/60
  5. 264/60 simplified gives 22/5
  6. So, 18/20 + 21/6 = 22/5
    In mixed form: 42/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com