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Subtract 10/27 from 1/7

1/7 - 10/27 is -43/189.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 27 is 189
  2. For the 1st fraction, since 7 × 27 = 189,
    1/7 = 1 × 27/7 × 27 = 27/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    10/27 = 10 × 7/27 × 7 = 70/189
  4. Subtract the two fractions:
    27/189 - 70/189 = 27 - 70/189 = -43/189

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