Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/28 from 18/6

1st number: 3 0/6, 2nd number: 21/28

18/6 - 21/28 is 9/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 28 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 6 × 14 = 84,
    18/6 = 18 × 14/6 × 14 = 252/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    21/28 = 21 × 3/28 × 3 = 63/84
  4. Subtract the two like fractions:
    252/84 - 63/84 = 252 - 63/84 = 189/84
  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