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Subtract 63/8 from 42/12

1st number: 3 6/12, 2nd number: 7 7/8

42/12 - 63/8 is -35/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 8 is 24
  2. For the 1st fraction, since 12 × 2 = 24,
    42/12 = 42 × 2/12 × 2 = 84/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    63/8 = 63 × 3/8 × 3 = 189/24
  4. Subtract the two fractions:
    84/24 - 189/24 = 84 - 189/24 = -105/24
  5. After reducing the fraction, the answer is -35/8

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