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Subtract 42/18 from 5/42

1st number: 5/42, 2nd number: 2 6/18

5/42 - 42/18 is -31/14.

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,
    5/42 = 5 × 3/42 × 3 = 15/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    42/18 = 42 × 7/18 × 7 = 294/126
  4. Subtract the two fractions:
    15/126 - 294/126 = 15 - 294/126 = -279/126
  5. After reducing the fraction, the answer is -31/14

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