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Subtract 42/12 from 30/8

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

30/8 - 42/12 is 1/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 12 is 24
  2. For the 1st fraction, since 8 × 3 = 24,
    30/8 = 30 × 3/8 × 3 = 90/24
  3. Likewise, for the 2nd fraction, since 12 × 2 = 24,
    42/12 = 42 × 2/12 × 2 = 84/24
  4. Subtract the two fractions:
    90/24 - 84/24 = 90 - 84/24 = 6/24
  5. After reducing the fraction, the answer is 1/4

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