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Compare 6/15 and 18/42

6/15 is smaller than 18/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 42 is 210
  2. For the 1st fraction, since 15 × 14 = 210,
    6/15 = 6 × 14/15 × 14 = 84/210
  3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
    18/42 = 18 × 5/42 × 5 = 90/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 84/210 < 90/210 or 6/15 < 18/42

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