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Subtract 50/27 from 70/21

1st number: 3 7/21, 2nd number: 1 23/27

70/21 - 50/27 is 40/27.

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,
    70/21 = 70 × 9/21 × 9 = 630/189
  3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
    50/27 = 50 × 7/27 × 7 = 350/189
  4. Subtract the two like fractions:
    630/189 - 350/189 = 630 - 350/189 = 280/189
  5. After reducing the fraction, the answer is 40/27
  6. In mixed form: 113/27

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