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Subtract 3/6 from 21/60

21/60 - 3/6 is -3/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 6 is 60
  2. For the 1st fraction, since 60 × 1 = 60,
    21/60 = 21 × 1/60 × 1 = 21/60
  3. Likewise, for the 2nd fraction, since 6 × 10 = 60,
    3/6 = 3 × 10/6 × 10 = 30/60
  4. Subtract the two fractions:
    21/60 - 30/60 = 21 - 30/60 = -9/60
  5. After reducing the fraction, the answer is -3/20

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