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Subtract 63/27 from 3/7

1st number: 3/7, 2nd number: 2 9/27

3/7 - 63/27 is -40/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 27 is 189

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 7 × 27 = 189,
    3/7 = 3 × 27/7 × 27 = 81/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    63/27 = 63 × 7/27 × 7 = 441/189
  4. Subtract the two like fractions:
    81/189 - 441/189 = 81 - 441/189 = -360/189
  5. After reducing the fraction, the answer is -40/21

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