Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 20/49 and 25/81

20/49 is greater than 25/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 49 and 81 is 3969

    Next, find the equivalent fraction of both fractional numbers with denominator 3969
  2. For the 1st fraction, since 49 × 81 = 3969,
    20/49 = 20 × 81/49 × 81 = 1620/3969
  3. Likewise, for the 2nd fraction, since 81 × 49 = 3969,
    25/81 = 25 × 49/81 × 49 = 1225/3969
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1620/3969 > 1225/3969 or 20/49 > 25/81

MathStep (Works offline)

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

Related:

© everydaycalculation.com