Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 2/12 from 28/81

28/81 - 2/12 is 29/162.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 12 is 324

    Next, find the equivalent fraction of both fractional numbers with denominator 324
  2. For the 1st fraction, since 81 × 4 = 324,
    28/81 = 28 × 4/81 × 4 = 112/324
  3. Likewise, for the 2nd fraction, since 12 × 27 = 324,
    2/12 = 2 × 27/12 × 27 = 54/324
  4. Subtract the two like fractions:
    112/324 - 54/324 = 112 - 54/324 = 58/324
  5. After reducing the fraction, the answer is 29/162

MathStep (Works offline)

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

Related:

© everydaycalculation.com