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Subtract 50/21 from 1/27

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

1/27 - 50/21 is -443/189.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 189
  2. For the 1st fraction, since 27 × 7 = 189,
    1/27 = 1 × 7/27 × 7 = 7/189
  3. Likewise, for the 2nd fraction, since 21 × 9 = 189,
    50/21 = 50 × 9/21 × 9 = 450/189
  4. Subtract the two like fractions:
    7/189 - 450/189 = 7 - 450/189 = -443/189

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