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Answers.everydaycalculation.com » Compare fractions

Compare 21/75 and 42/54

21/75 is smaller than 42/54

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 54 is 1350

    Next, find the equivalent fraction of both fractional numbers with denominator 1350
  2. For the 1st fraction, since 75 × 18 = 1350,
    21/75 = 21 × 18/75 × 18 = 378/1350
  3. Likewise, for the 2nd fraction, since 54 × 25 = 1350,
    42/54 = 42 × 25/54 × 25 = 1050/1350
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 378/1350 < 1050/1350 or 21/75 < 42/54

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