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Answers.everydaycalculation.com » Compare fractions

Compare 3/7 and 18/30

3/7 is smaller than 18/30

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 7 × 30 = 210,
    3/7 = 3 × 30/7 × 30 = 90/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    18/30 = 18 × 7/30 × 7 = 126/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 90/210 < 126/210 or 3/7 < 18/30

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