Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/12 from 8/2

1st number: 4 0/2, 2nd number: 1 9/12

8/2 - 21/12 is 9/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 12 is 12
  2. For the 1st fraction, since 2 × 6 = 12,
    8/2 = 8 × 6/2 × 6 = 48/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    21/12 = 21 × 1/12 × 1 = 21/12
  4. Subtract the two fractions:
    48/12 - 21/12 = 48 - 21/12 = 27/12
  5. After reducing the fraction, the answer is 9/4
  6. In mixed form: 21/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com