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Subtract 27/20 from 3/36

1st number: 3/36, 2nd number: 1 7/20

3/36 - 27/20 is -19/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 36 × 5 = 180,
    3/36 = 3 × 5/36 × 5 = 15/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    27/20 = 27 × 9/20 × 9 = 243/180
  4. Subtract the two like fractions:
    15/180 - 243/180 = 15 - 243/180 = -228/180
  5. After reducing the fraction, the answer is -19/15

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