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Compare 3/6 and 2/21

3/6 is greater than 2/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 21 is 42
  2. For the 1st fraction, since 6 × 7 = 42,
    3/6 = 3 × 7/6 × 7 = 21/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    2/21 = 2 × 2/21 × 2 = 4/42
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 21/42 > 4/42 or 3/6 > 2/21

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