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Subtract 21/6 from 8/12

1st number: 8/12, 2nd number: 3 3/6

8/12 - 21/6 is -17/6.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 6 is 12
  2. For the 1st fraction, since 12 × 1 = 12,
    8/12 = 8 × 1/12 × 1 = 8/12
  3. Likewise, for the 2nd fraction, since 6 × 2 = 12,
    21/6 = 21 × 2/6 × 2 = 42/12
  4. Subtract the two fractions:
    8/12 - 42/12 = 8 - 42/12 = -34/12
  5. After reducing the fraction, the answer is -17/6

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