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Subtract 84/20 from 5/18

1st number: 5/18, 2nd number: 4 4/20

5/18 - 84/20 is -353/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    5/18 = 5 × 10/18 × 10 = 50/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    84/20 = 84 × 9/20 × 9 = 756/180
  4. Subtract the two like fractions:
    50/180 - 756/180 = 50 - 756/180 = -706/180
  5. After reducing the fraction, the answer is -353/90

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