Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 42/60 and 21/81

42/60 is greater than 21/81

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 81 is 1620

    Next, find the equivalent fraction of both fractional numbers with denominator 1620
  2. For the 1st fraction, since 60 × 27 = 1620,
    42/60 = 42 × 27/60 × 27 = 1134/1620
  3. Likewise, for the 2nd fraction, since 81 × 20 = 1620,
    21/81 = 21 × 20/81 × 20 = 420/1620
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1134/1620 > 420/1620 or 42/60 > 21/81

MathStep (Works offline)

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

Related:

© everydaycalculation.com