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Subtract 16/36 from 4/40

4/40 - 16/36 is -31/90.

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,
    16/36 = 16 × 10/36 × 10 = 160/360
  4. Subtract the two like fractions:
    36/360 - 160/360 = 36 - 160/360 = -124/360
  5. After reducing the fraction, the answer is -31/90

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