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Subtract 21/6 from 10/20

1st number: 10/20, 2nd number: 3 3/6

10/20 - 21/6 is -3/1.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 6 is 60
  2. For the 1st fraction, since 20 × 3 = 60,
    10/20 = 10 × 3/20 × 3 = 30/60
  3. Likewise, for the 2nd fraction, since 6 × 10 = 60,
    21/6 = 21 × 10/6 × 10 = 210/60
  4. Subtract the two fractions:
    30/60 - 210/60 = 30 - 210/60 = -180/60
  5. After reducing the fraction, the answer is -3/1

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