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Subtract 90/63 from 16/30

1st number: 16/30, 2nd number: 1 27/63

16/30 - 90/63 is -94/105.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 63 is 630
  2. For the 1st fraction, since 30 × 21 = 630,
    16/30 = 16 × 21/30 × 21 = 336/630
  3. Likewise, for the 2nd fraction, since 63 × 10 = 630,
    90/63 = 90 × 10/63 × 10 = 900/630
  4. Subtract the two fractions:
    336/630 - 900/630 = 336 - 900/630 = -564/630
  5. After reducing the fraction, the answer is -94/105

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