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Answers.everydaycalculation.com » Compare fractions

Compare 40/21 and 7/72

1st number: 1 19/21, 2nd number: 7/72

40/21 is greater than 7/72

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 72 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 21 × 24 = 504,
    40/21 = 40 × 24/21 × 24 = 960/504
  3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
    7/72 = 7 × 7/72 × 7 = 49/504
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 960/504 > 49/504 or 40/21 > 7/72

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