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Subtract 42/8 from 3/6

1st number: 3/6, 2nd number: 5 2/8

3/6 - 42/8 is -19/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 8 is 24

    Next, find the equivalent fraction of both fractional numbers with denominator 24
  2. For the 1st fraction, since 6 × 4 = 24,
    3/6 = 3 × 4/6 × 4 = 12/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    42/8 = 42 × 3/8 × 3 = 126/24
  4. Subtract the two like fractions:
    12/24 - 126/24 = 12 - 126/24 = -114/24
  5. After reducing the fraction, the answer is -19/4

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