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Subtract 15/20 from 40/75

40/75 - 15/20 is -13/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 20 is 300

    Next, find the equivalent fraction of both fractional numbers with denominator 300
  2. For the 1st fraction, since 75 × 4 = 300,
    40/75 = 40 × 4/75 × 4 = 160/300
  3. Likewise, for the 2nd fraction, since 20 × 15 = 300,
    15/20 = 15 × 15/20 × 15 = 225/300
  4. Subtract the two like fractions:
    160/300 - 225/300 = 160 - 225/300 = -65/300
  5. After reducing the fraction, the answer is -13/60

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