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Subtract 90/63 from 16/75

1st number: 16/75, 2nd number: 1 27/63

16/75 - 90/63 is -638/525.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 63 is 1575
  2. For the 1st fraction, since 75 × 21 = 1575,
    16/75 = 16 × 21/75 × 21 = 336/1575
  3. Likewise, for the 2nd fraction, since 63 × 25 = 1575,
    90/63 = 90 × 25/63 × 25 = 2250/1575
  4. Subtract the two fractions:
    336/1575 - 2250/1575 = 336 - 2250/1575 = -1914/1575
  5. After reducing the fraction, the answer is -638/525

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