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Compare 40/42 and 18/50

40/42 is greater than 18/50

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 50 is 1050
  2. For the 1st fraction, since 42 × 25 = 1050,
    40/42 = 40 × 25/42 × 25 = 1000/1050
  3. Likewise, for the 2nd fraction, since 50 × 21 = 1050,
    18/50 = 18 × 21/50 × 21 = 378/1050
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 1000/1050 > 378/1050 or 40/42 > 18/50

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