Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 10/21 from 45/2

1st number: 22 1/2, 2nd number: 10/21

45/2 - 10/21 is 925/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    45/2 = 45 × 21/2 × 21 = 945/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    10/21 = 10 × 2/21 × 2 = 20/42
  4. Subtract the two fractions:
    945/42 - 20/42 = 945 - 20/42 = 925/42
  5. In mixed form: 221/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com