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Answers.everydaycalculation.com » Compare fractions

Compare 90/36 and 21/30

1st number: 2 18/36, 2nd number: 21/30

90/36 is greater than 21/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 30 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    90/36 = 90 × 5/36 × 5 = 450/180
  3. Likewise, for the 2nd fraction, since 30 × 6 = 180,
    21/30 = 21 × 6/30 × 6 = 126/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 450/180 > 126/180 or 90/36 > 21/30

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