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Subtract 30/63 from 10/18

10/18 - 30/63 is 5/63.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 63 is 126
  2. For the 1st fraction, since 18 × 7 = 126,
    10/18 = 10 × 7/18 × 7 = 70/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    30/63 = 30 × 2/63 × 2 = 60/126
  4. Subtract the two fractions:
    70/126 - 60/126 = 70 - 60/126 = 10/126
  5. After reducing the fraction, the answer is 5/63

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