Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 4/40 and 81/30

1st number: 4/40, 2nd number: 2 21/30

4/40 is smaller than 81/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 30 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    4/40 = 4 × 3/40 × 3 = 12/120
  3. Likewise, for the 2nd fraction, since 30 × 4 = 120,
    81/30 = 81 × 4/30 × 4 = 324/120
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 12/120 < 324/120 or 4/40 < 81/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com