Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/4 and 18/12

1st number: 1 3/4, 2nd number: 1 6/12

7/4 + 18/12 is 13/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 12 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 4 × 3 = 12,
    7/4 = 7 × 3/4 × 3 = 21/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    18/12 = 18 × 1/12 × 1 = 18/12
  4. Add the two like fractions:
    21/12 + 18/12 = 21 + 18/12 = 39/12
  5. 39/12 simplified gives 13/4
  6. So, 7/4 + 18/12 = 13/4
    In mixed form: 31/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com