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Subtract 35/27 from 6/21

1st number: 6/21, 2nd number: 1 8/27

6/21 - 35/27 is -191/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 27 is 189

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 21 × 9 = 189,
    6/21 = 6 × 9/21 × 9 = 54/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    35/27 = 35 × 7/27 × 7 = 245/189
  4. Subtract the two like fractions:
    54/189 - 245/189 = 54 - 245/189 = -191/189

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