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Subtract 18/6 from 9/42

1st number: 9/42, 2nd number: 3 0/6

9/42 - 18/6 is -39/14.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 6 is 42
  2. For the 1st fraction, since 42 × 1 = 42,
    9/42 = 9 × 1/42 × 1 = 9/42
  3. Likewise, for the 2nd fraction, since 6 × 7 = 42,
    18/6 = 18 × 7/6 × 7 = 126/42
  4. Subtract the two fractions:
    9/42 - 126/42 = 9 - 126/42 = -117/42
  5. After reducing the fraction, the answer is -39/14

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