Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 27/30 and 18/9

1st number: 27/30, 2nd number: 2 0/9

27/30 + 18/9 is 29/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 9 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    27/30 = 27 × 3/30 × 3 = 81/90
  3. Likewise, for the 2nd fraction, since 9 × 10 = 90,
    18/9 = 18 × 10/9 × 10 = 180/90
  4. Add the two like fractions:
    81/90 + 180/90 = 81 + 180/90 = 261/90
  5. 261/90 simplified gives 29/10
  6. So, 27/30 + 18/9 = 29/10
    In mixed form: 29/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com