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Compare 15/12 and 42/40

1st number: 1 3/12, 2nd number: 1 2/40

15/12 is greater than 42/40

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 40 is 120
  2. For the 1st fraction, since 12 × 10 = 120,
    15/12 = 15 × 10/12 × 10 = 150/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    42/40 = 42 × 3/40 × 3 = 126/120
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 150/120 > 126/120 or 15/12 > 42/40

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