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Answers.everydaycalculation.com » Compare fractions

Compare 90/15 and 81/20

1st number: 6 0/15, 2nd number: 4 1/20

90/15 is greater than 81/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 20 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 15 × 4 = 60,
    90/15 = 90 × 4/15 × 4 = 360/60
  3. Likewise, for the 2nd fraction, since 20 × 3 = 60,
    81/20 = 81 × 3/20 × 3 = 243/60
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 360/60 > 243/60 or 90/15 > 81/20

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