Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 7/81 and 15/45

7/81 is smaller than 15/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 81 and 45 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 81 × 5 = 405,
    7/81 = 7 × 5/81 × 5 = 35/405
  3. Likewise, for the 2nd fraction, since 45 × 9 = 405,
    15/45 = 15 × 9/45 × 9 = 135/405
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 35/405 < 135/405 or 7/81 < 15/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com