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Subtract 18/5 from 36/20

1st number: 1 16/20, 2nd number: 3 3/5

36/20 - 18/5 is -9/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    36/20 = 36 × 1/20 × 1 = 36/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    18/5 = 18 × 4/5 × 4 = 72/20
  4. Subtract the two like fractions:
    36/20 - 72/20 = 36 - 72/20 = -36/20
  5. After reducing the fraction, the answer is -9/5

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