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Subtract 63/21 from 5/2

1st number: 2 1/2, 2nd number: 3 0/21

5/2 - 63/21 is -1/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42
  2. For the 1st fraction, since 2 × 21 = 42,
    5/2 = 5 × 21/2 × 21 = 105/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    63/21 = 63 × 2/21 × 2 = 126/42
  4. Subtract the two fractions:
    105/42 - 126/42 = 105 - 126/42 = -21/42
  5. After reducing the fraction, the answer is -1/2

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