Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/8 from 49/36

1st number: 1 13/36, 2nd number: 2 5/8

49/36 - 21/8 is -91/72.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 36 × 2 = 72,
    49/36 = 49 × 2/36 × 2 = 98/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    21/8 = 21 × 9/8 × 9 = 189/72
  4. Subtract the two like fractions:
    98/72 - 189/72 = 98 - 189/72 = -91/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com