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Subtract 21/6 from 40/2

1st number: 20 0/2, 2nd number: 3 3/6

40/2 - 21/6 is 33/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 6 is 6
  2. For the 1st fraction, since 2 × 3 = 6,
    40/2 = 40 × 3/2 × 3 = 120/6
  3. Likewise, for the 2nd fraction, since 6 × 1 = 6,
    21/6 = 21 × 1/6 × 1 = 21/6
  4. Subtract the two fractions:
    120/6 - 21/6 = 120 - 21/6 = 99/6
  5. After reducing the fraction, the answer is 33/2
  6. In mixed form: 161/2

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