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Subtract 50/27 from 10/21

1st number: 10/21, 2nd number: 1 23/27

10/21 - 50/27 is -260/189.

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,
    10/21 = 10 × 9/21 × 9 = 90/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    50/27 = 50 × 7/27 × 7 = 350/189
  4. Subtract the two like fractions:
    90/189 - 350/189 = 90 - 350/189 = -260/189

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