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Compare 1/21 and 9/8

1st number: 1/21, 2nd number: 1 1/8

1/21 is smaller than 9/8

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    1/21 = 1 × 8/21 × 8 = 8/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    9/8 = 9 × 21/8 × 21 = 189/168
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 8/168 < 189/168 or 1/21 < 9/8

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