Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 18/30 and 81/7

1st number: 18/30, 2nd number: 11 4/7

18/30 is smaller than 81/7

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 7 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 30 × 7 = 210,
    18/30 = 18 × 7/30 × 7 = 126/210
  3. Likewise, for the 2nd fraction, since 7 × 30 = 210,
    81/7 = 81 × 30/7 × 30 = 2430/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 126/210 < 2430/210 or 18/30 < 81/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com