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Answers.everydaycalculation.com » Compare fractions

Compare 7/40 and 1/21

7/40 is greater than 1/21

Steps for comparing fractions

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

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

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