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Subtract 70/75 from 7/40

7/40 - 70/75 is -91/120.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 75 is 600

    Next, find the equivalent fraction of both fractional numbers with denominator 600
  2. For the 1st fraction, since 40 × 15 = 600,
    7/40 = 7 × 15/40 × 15 = 105/600
  3. Likewise, for the 2nd fraction, since 75 × 8 = 600,
    70/75 = 70 × 8/75 × 8 = 560/600
  4. Subtract the two like fractions:
    105/600 - 560/600 = 105 - 560/600 = -455/600
  5. After reducing the fraction, the answer is -91/120

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