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Subtract 21/6 from 6/20

1st number: 6/20, 2nd number: 3 3/6

6/20 - 21/6 is -16/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 6 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 20 × 3 = 60,
    6/20 = 6 × 3/20 × 3 = 18/60
  3. Likewise, for the 2nd fraction, since 6 × 10 = 60,
    21/6 = 21 × 10/6 × 10 = 210/60
  4. Subtract the two like fractions:
    18/60 - 210/60 = 18 - 210/60 = -192/60
  5. After reducing the fraction, the answer is -16/5

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