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Subtract 20/9 from 4/20

1st number: 4/20, 2nd number: 2 2/9

4/20 - 20/9 is -91/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    4/20 = 4 × 9/20 × 9 = 36/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    20/9 = 20 × 20/9 × 20 = 400/180
  4. Subtract the two fractions:
    36/180 - 400/180 = 36 - 400/180 = -364/180
  5. After reducing the fraction, the answer is -91/45

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