Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 30/81 and 50/80

30/81 is smaller than 50/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 80 is 6480

    Next, find the equivalent fraction of both fractional numbers with denominator 6480
  2. For the 1st fraction, since 81 × 80 = 6480,
    30/81 = 30 × 80/81 × 80 = 2400/6480
  3. Likewise, for the 2nd fraction, since 80 × 81 = 6480,
    50/80 = 50 × 81/80 × 81 = 4050/6480
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 2400/6480 < 4050/6480 or 30/81 < 50/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com