Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/18 from 24/27

1st number: 24/27, 2nd number: 1 3/18

24/27 - 21/18 is -5/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 18 is 54

    Next, find the equivalent fraction of both fractional numbers with denominator 54
  2. For the 1st fraction, since 27 × 2 = 54,
    24/27 = 24 × 2/27 × 2 = 48/54
  3. Likewise, for the 2nd fraction, since 18 × 3 = 54,
    21/18 = 21 × 3/18 × 3 = 63/54
  4. Subtract the two like fractions:
    48/54 - 63/54 = 48 - 63/54 = -15/54
  5. After reducing the fraction, the answer is -5/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com