Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/21 from 98/54

1st number: 1 44/54, 2nd number: 7/21

98/54 - 7/21 is 40/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 21 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    98/54 = 98 × 7/54 × 7 = 686/378
  3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
    7/21 = 7 × 18/21 × 18 = 126/378
  4. Subtract the two like fractions:
    686/378 - 126/378 = 686 - 126/378 = 560/378
  5. After reducing the fraction, the answer is 40/27
  6. In mixed form: 113/27

MathStep (Works offline)

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

Related:

© everydaycalculation.com