Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 72/12 and 81/80

1st number: 6 0/12, 2nd number: 1 1/80

72/12 is greater than 81/80

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 80 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 12 × 20 = 240,
    72/12 = 72 × 20/12 × 20 = 1440/240
  3. Likewise, for the 2nd fraction, since 80 × 3 = 240,
    81/80 = 81 × 3/80 × 3 = 243/240
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1440/240 > 243/240 or 72/12 > 81/80

MathStep (Works offline)

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

Related:

© everydaycalculation.com