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Answers.everydaycalculation.com » Compare fractions

Compare 4/90 and 81/50

1st number: 4/90, 2nd number: 1 31/50

4/90 is smaller than 81/50

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 50 is 450
  2. For the 1st fraction, since 90 × 5 = 450,
    4/90 = 4 × 5/90 × 5 = 20/450
  3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
    81/50 = 81 × 9/50 × 9 = 729/450
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 20/450 < 729/450 or 4/90 < 81/50

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