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Compare 21/18 and 24/20

1st number: 1 3/18, 2nd number: 1 4/20

21/18 is smaller than 24/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180
  2. For the 1st fraction, since 18 × 10 = 180,
    21/18 = 21 × 10/18 × 10 = 210/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    24/20 = 24 × 9/20 × 9 = 216/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 210/180 < 216/180 or 21/18 < 24/20

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