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Subtract 40/56 from 30/75

30/75 - 40/56 is -11/35.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 56 is 4200
  2. For the 1st fraction, since 75 × 56 = 4200,
    30/75 = 30 × 56/75 × 56 = 1680/4200
  3. Likewise, for the 2nd fraction, since 56 × 75 = 4200,
    40/56 = 40 × 75/56 × 75 = 3000/4200
  4. Subtract the two fractions:
    1680/4200 - 3000/4200 = 1680 - 3000/4200 = -1320/4200
  5. After reducing the fraction, the answer is -11/35

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