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Answers.everydaycalculation.com » Compare fractions

Compare 90/21 and 72/36

1st number: 4 6/21, 2nd number: 2 0/36

90/21 is greater than 72/36

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 36 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 21 × 12 = 252,
    90/21 = 90 × 12/21 × 12 = 1080/252
  3. Likewise, for the 2nd fraction, since 36 × 7 = 252,
    72/36 = 72 × 7/36 × 7 = 504/252
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1080/252 > 504/252 or 90/21 > 72/36

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