Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 16/42 from 21/2

1st number: 10 1/2, 2nd number: 16/42

21/2 - 16/42 is 425/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 42 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 2 × 21 = 42,
    21/2 = 21 × 21/2 × 21 = 441/42
  3. Likewise, for the 2nd fraction, since 42 × 1 = 42,
    16/42 = 16 × 1/42 × 1 = 16/42
  4. Subtract the two like fractions:
    441/42 - 16/42 = 441 - 16/42 = 425/42
  5. In mixed form: 105/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com