Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 2/4 and 18/21

2/4 + 18/21 is 19/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 21 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 4 × 21 = 84,
    2/4 = 2 × 21/4 × 21 = 42/84
  3. Likewise, for the 2nd fraction, since 21 × 4 = 84,
    18/21 = 18 × 4/21 × 4 = 72/84
  4. Add the two like fractions:
    42/84 + 72/84 = 42 + 72/84 = 114/84
  5. 114/84 simplified gives 19/14
  6. So, 2/4 + 18/21 = 19/14
    In mixed form: 15/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com