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Compare 1/18 and 21/16

1st number: 1/18, 2nd number: 1 5/16

1/18 is smaller than 21/16

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 16 is 144
  2. For the 1st fraction, since 18 × 8 = 144,
    1/18 = 1 × 8/18 × 8 = 8/144
  3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
    21/16 = 21 × 9/16 × 9 = 189/144
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 8/144 < 189/144 or 1/18 < 21/16

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