Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 2/4 and 1/21

2/4 + 1/21 is 23/42.

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,
    1/21 = 1 × 4/21 × 4 = 4/84
  4. Add the two like fractions:
    42/84 + 4/84 = 42 + 4/84 = 46/84
  5. 46/84 simplified gives 23/42
  6. So, 2/4 + 1/21 = 23/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com