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Subtract 5/81 from 75/70

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

75/70 - 5/81 is 1145/1134.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 81 is 5670

    Next, find the equivalent fraction of both fractional numbers with denominator 5670
  2. For the 1st fraction, since 70 × 81 = 5670,
    75/70 = 75 × 81/70 × 81 = 6075/5670
  3. Likewise, for the 2nd fraction, since 81 × 70 = 5670,
    5/81 = 5 × 70/81 × 70 = 350/5670
  4. Subtract the two like fractions:
    6075/5670 - 350/5670 = 6075 - 350/5670 = 5725/5670
  5. After reducing the fraction, the answer is 1145/1134
  6. In mixed form: 111/1134

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