Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 3/2 and 21/7

1st number: 1 1/2, 2nd number: 3 0/7

3/2 is smaller than 21/7

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 7 is 14

    Next, find the equivalent fraction of both fractional numbers with denominator 14
  2. For the 1st fraction, since 2 × 7 = 14,
    3/2 = 3 × 7/2 × 7 = 21/14
  3. Likewise, for the 2nd fraction, since 7 × 2 = 14,
    21/7 = 21 × 2/7 × 2 = 42/14
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 21/14 < 42/14 or 3/2 < 21/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com