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Answers.everydaycalculation.com » Compare fractions

Compare 21/75 and 12/45

21/75 is greater than 12/45

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 45 is 225

    Next, find the equivalent fraction of both fractional numbers with denominator 225
  2. For the 1st fraction, since 75 × 3 = 225,
    21/75 = 21 × 3/75 × 3 = 63/225
  3. Likewise, for the 2nd fraction, since 45 × 5 = 225,
    12/45 = 12 × 5/45 × 5 = 60/225
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 63/225 > 60/225 or 21/75 > 12/45

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