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Subtract 45/4 from 42/12

1st number: 3 6/12, 2nd number: 11 1/4

42/12 - 45/4 is -31/4.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 4 is 12

    Next, find the equivalent fraction of both fractional numbers with denominator 12
  2. For the 1st fraction, since 12 × 1 = 12,
    42/12 = 42 × 1/12 × 1 = 42/12
  3. Likewise, for the 2nd fraction, since 4 × 3 = 12,
    45/4 = 45 × 3/4 × 3 = 135/12
  4. Subtract the two like fractions:
    42/12 - 135/12 = 42 - 135/12 = -93/12
  5. After reducing the fraction, the answer is -31/4

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