Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 21/6 and 15/8

1st number: 3 3/6, 2nd number: 1 7/8

21/6 is greater than 15/8

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 8 is 24
  2. For the 1st fraction, since 6 × 4 = 24,
    21/6 = 21 × 4/6 × 4 = 84/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    15/8 = 15 × 3/8 × 3 = 45/24
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 84/24 > 45/24 or 21/6 > 15/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com