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Answers.everydaycalculation.com » Compare fractions

Compare 50/18 and 72/21

1st number: 2 14/18, 2nd number: 3 9/21

50/18 is smaller than 72/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    50/18 = 50 × 7/18 × 7 = 350/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    72/21 = 72 × 6/21 × 6 = 432/126
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 350/126 < 432/126 or 50/18 < 72/21

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