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Compare 4/45 and 18/42

4/45 is smaller than 18/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 42 is 630
  2. For the 1st fraction, since 45 × 14 = 630,
    4/45 = 4 × 14/45 × 14 = 56/630
  3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
    18/42 = 18 × 15/42 × 15 = 270/630
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 56/630 < 270/630 or 4/45 < 18/42

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