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Subtract 18/40 from 3/5

3/5 - 18/40 is 3/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 40 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 5 × 8 = 40,
    3/5 = 3 × 8/5 × 8 = 24/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    18/40 = 18 × 1/40 × 1 = 18/40
  4. Subtract the two like fractions:
    24/40 - 18/40 = 24 - 18/40 = 6/40
  5. After reducing the fraction, the answer is 3/20

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