Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/9 and 12/8

1st number: 2 0/9, 2nd number: 1 4/8

18/9 + 12/8 is 7/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 9 × 8 = 72,
    18/9 = 18 × 8/9 × 8 = 144/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    12/8 = 12 × 9/8 × 9 = 108/72
  4. Add the two like fractions:
    144/72 + 108/72 = 144 + 108/72 = 252/72
  5. 252/72 simplified gives 7/2
  6. So, 18/9 + 12/8 = 7/2
    In mixed form: 31/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com