Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 27/3 and 18/7

1st number: 9 0/3, 2nd number: 2 4/7

27/3 + 18/7 is 81/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 7 is 21

    Next, find the equivalent fraction of both fractional numbers with denominator 21
  2. For the 1st fraction, since 3 × 7 = 21,
    27/3 = 27 × 7/3 × 7 = 189/21
  3. Likewise, for the 2nd fraction, since 7 × 3 = 21,
    18/7 = 18 × 3/7 × 3 = 54/21
  4. Add the two like fractions:
    189/21 + 54/21 = 189 + 54/21 = 243/21
  5. 243/21 simplified gives 81/7
  6. So, 27/3 + 18/7 = 81/7
    In mixed form: 114/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com