Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 3/2 and 18/21

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

3/2 + 18/21 is 33/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42

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