Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/30 and 2/20

21/30 + 2/20 is 4/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    21/30 = 21 × 2/30 × 2 = 42/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    2/20 = 2 × 3/20 × 3 = 6/60
  4. Add the two like fractions:
    42/60 + 6/60 = 42 + 6/60 = 48/60
  5. 48/60 simplified gives 4/5
  6. So, 21/30 + 2/20 = 4/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com