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Subtract 24/36 from 4/40

4/40 - 24/36 is -17/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 36 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 40 × 9 = 360,
    4/40 = 4 × 9/40 × 9 = 36/360
  3. Likewise, for the 2nd fraction, since 36 × 10 = 360,
    24/36 = 24 × 10/36 × 10 = 240/360
  4. Subtract the two like fractions:
    36/360 - 240/360 = 36 - 240/360 = -204/360
  5. After reducing the fraction, the answer is -17/30

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