Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/21 from 9/2

1st number: 4 1/2, 2nd number: 1 9/21

9/2 - 30/21 is 43/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 2 × 21 = 42,
    9/2 = 9 × 21/2 × 21 = 189/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    30/21 = 30 × 2/21 × 2 = 60/42
  4. Subtract the two like fractions:
    189/42 - 60/42 = 189 - 60/42 = 129/42
  5. After reducing the fraction, the answer is 43/14
  6. In mixed form: 31/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com