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Subtract 70/81 from 50/15

1st number: 3 5/15, 2nd number: 70/81

50/15 - 70/81 is 200/81.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 81 is 405

    Next, find the equivalent fraction of both fractional numbers with denominator 405
  2. For the 1st fraction, since 15 × 27 = 405,
    50/15 = 50 × 27/15 × 27 = 1350/405
  3. Likewise, for the 2nd fraction, since 81 × 5 = 405,
    70/81 = 70 × 5/81 × 5 = 350/405
  4. Subtract the two like fractions:
    1350/405 - 350/405 = 1350 - 350/405 = 1000/405
  5. After reducing the fraction, the answer is 200/81
  6. In mixed form: 238/81

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