Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 2/42 and 8/20

2/42 + 8/20 is 47/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 20 is 420
  2. For the 1st fraction, since 42 × 10 = 420,
    2/42 = 2 × 10/42 × 10 = 20/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    8/20 = 8 × 21/20 × 21 = 168/420
  4. Add the two fractions:
    20/420 + 168/420 = 20 + 168/420 = 188/420
  5. 188/420 simplified gives 47/105
  6. So, 2/42 + 8/20 = 47/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com