Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 28/84 and 56/81

28/84 is smaller than 56/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 81 is 2268

    Next, find the equivalent fraction of both fractional numbers with denominator 2268
  2. For the 1st fraction, since 84 × 27 = 2268,
    28/84 = 28 × 27/84 × 27 = 756/2268
  3. Likewise, for the 2nd fraction, since 81 × 28 = 2268,
    56/81 = 56 × 28/81 × 28 = 1568/2268
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 756/2268 < 1568/2268 or 28/84 < 56/81

MathStep (Works offline)

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

Related:

© everydaycalculation.com