Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 40/98 from 21/8

1st number: 2 5/8, 2nd number: 40/98

21/8 - 40/98 is 869/392.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 98 is 392

    Next, find the equivalent fraction of both fractional numbers with denominator 392
  2. For the 1st fraction, since 8 × 49 = 392,
    21/8 = 21 × 49/8 × 49 = 1029/392
  3. Likewise, for the 2nd fraction, since 98 × 4 = 392,
    40/98 = 40 × 4/98 × 4 = 160/392
  4. Subtract the two like fractions:
    1029/392 - 160/392 = 1029 - 160/392 = 869/392
  5. In mixed form: 285/392

MathStep (Works offline)

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

Related:

© everydaycalculation.com