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Subtract 16/63 from 21/4

1st number: 5 1/4, 2nd number: 16/63

21/4 - 16/63 is 1259/252.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 63 is 252
  2. For the 1st fraction, since 4 × 63 = 252,
    21/4 = 21 × 63/4 × 63 = 1323/252
  3. Likewise, for the 2nd fraction, since 63 × 4 = 252,
    16/63 = 16 × 4/63 × 4 = 64/252
  4. Subtract the two fractions:
    1323/252 - 64/252 = 1323 - 64/252 = 1259/252
  5. In mixed form: 4251/252

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