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Answers.everydaycalculation.com » Compare fractions

Compare 54/21 and 7/40

1st number: 2 12/21, 2nd number: 7/40

54/21 is greater than 7/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 40 is 840

    Next, find the equivalent fraction of both fractional numbers with denominator 840
  2. For the 1st fraction, since 21 × 40 = 840,
    54/21 = 54 × 40/21 × 40 = 2160/840
  3. Likewise, for the 2nd fraction, since 40 × 21 = 840,
    7/40 = 7 × 21/40 × 21 = 147/840
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 2160/840 > 147/840 or 54/21 > 7/40

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