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Answers.everydaycalculation.com » Compare fractions

Compare 12/70 and 21/9

1st number: 12/70, 2nd number: 2 3/9

12/70 is smaller than 21/9

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 9 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    12/70 = 12 × 9/70 × 9 = 108/630
  3. Likewise, for the 2nd fraction, since 9 × 70 = 630,
    21/9 = 21 × 70/9 × 70 = 1470/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 108/630 < 1470/630 or 12/70 < 21/9

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