Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/12 and 21/84

9/12 + 21/84 is 1/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 84 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 12 × 7 = 84,
    9/12 = 9 × 7/12 × 7 = 63/84
  3. Likewise, for the 2nd fraction, since 84 × 1 = 84,
    21/84 = 21 × 1/84 × 1 = 21/84
  4. Add the two like fractions:
    63/84 + 21/84 = 63 + 21/84 = 84/84
  5. 84/84 simplified gives 1/1
  6. So, 9/12 + 21/84 = 1/1

MathStep (Works offline)

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

Related:

© everydaycalculation.com