Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 72/18 and 9/12

1st number: 4 0/18, 2nd number: 9/12

72/18 + 9/12 is 19/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 12 is 36
  2. For the 1st fraction, since 18 × 2 = 36,
    72/18 = 72 × 2/18 × 2 = 144/36
  3. Likewise, for the 2nd fraction, since 12 × 3 = 36,
    9/12 = 9 × 3/12 × 3 = 27/36
  4. Add the two fractions:
    144/36 + 27/36 = 144 + 27/36 = 171/36
  5. After reducing the fraction, the answer is 19/4
  6. In mixed form: 43/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com