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Answers.everydaycalculation.com » Compare fractions

Compare 30/70 and 3/21

30/70 is greater than 3/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 21 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 70 × 3 = 210,
    30/70 = 30 × 3/70 × 3 = 90/210
  3. Likewise, for the 2nd fraction, since 21 × 10 = 210,
    3/21 = 3 × 10/21 × 10 = 30/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 90/210 > 30/210 or 30/70 > 3/21

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