Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/30 and 84/12

1st number: 9/30, 2nd number: 7 0/12

9/30 + 84/12 is 73/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 12 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    9/30 = 9 × 2/30 × 2 = 18/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    84/12 = 84 × 5/12 × 5 = 420/60
  4. Add the two like fractions:
    18/60 + 420/60 = 18 + 420/60 = 438/60
  5. 438/60 simplified gives 73/10
  6. So, 9/30 + 84/12 = 73/10
    In mixed form: 73/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com