Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 54/18 from 24/21

1st number: 1 3/21, 2nd number: 3 0/18

24/21 - 54/18 is -13/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 18 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 21 × 6 = 126,
    24/21 = 24 × 6/21 × 6 = 144/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    54/18 = 54 × 7/18 × 7 = 378/126
  4. Subtract the two like fractions:
    144/126 - 378/126 = 144 - 378/126 = -234/126
  5. After reducing the fraction, the answer is -13/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com