Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/21 and 9/6

1st number: 18/21, 2nd number: 1 3/6

18/21 + 9/6 is 33/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 6 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    18/21 = 18 × 2/21 × 2 = 36/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    9/6 = 9 × 7/6 × 7 = 63/42
  4. Add the two like fractions:
    36/42 + 63/42 = 36 + 63/42 = 99/42
  5. 99/42 simplified gives 33/14
  6. So, 18/21 + 9/6 = 33/14
    In mixed form: 25/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com