Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/30 and 3/84

9/30 + 3/84 is 47/140.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 84 is 420
  2. For the 1st fraction, since 30 × 14 = 420,
    9/30 = 9 × 14/30 × 14 = 126/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    3/84 = 3 × 5/84 × 5 = 15/420
  4. Add the two fractions:
    126/420 + 15/420 = 126 + 15/420 = 141/420
  5. 141/420 simplified gives 47/140
  6. So, 9/30 + 3/84 = 47/140

MathStep (Works offline)

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

Related:

© everydaycalculation.com