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Subtract 50/18 from 40/42

1st number: 40/42, 2nd number: 2 14/18

40/42 - 50/18 is -115/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 18 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    40/42 = 40 × 3/42 × 3 = 120/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    50/18 = 50 × 7/18 × 7 = 350/126
  4. Subtract the two fractions:
    120/126 - 350/126 = 120 - 350/126 = -230/126
  5. After reducing the fraction, the answer is -115/63

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