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Subtract 40/12 from 1/27

1st number: 1/27, 2nd number: 3 4/12

1/27 - 40/12 is -89/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 12 is 108

    Next, find the equivalent fraction of both fractional numbers with denominator 108
  2. For the 1st fraction, since 27 × 4 = 108,
    1/27 = 1 × 4/27 × 4 = 4/108
  3. Likewise, for the 2nd fraction, since 12 × 9 = 108,
    40/12 = 40 × 9/12 × 9 = 360/108
  4. Subtract the two like fractions:
    4/108 - 360/108 = 4 - 360/108 = -356/108
  5. After reducing the fraction, the answer is -89/27

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