Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 12/4 from 3/18

1st number: 3/18, 2nd number: 3 0/4

3/18 - 12/4 is -17/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 4 is 36

    Next, find the equivalent fraction of both fractional numbers with denominator 36
  2. For the 1st fraction, since 18 × 2 = 36,
    3/18 = 3 × 2/18 × 2 = 6/36
  3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
    12/4 = 12 × 9/4 × 9 = 108/36
  4. Subtract the two like fractions:
    6/36 - 108/36 = 6 - 108/36 = -102/36
  5. After reducing the fraction, the answer is -17/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com