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Subtract 28/63 from 27/18

1st number: 1 9/18, 2nd number: 28/63

27/18 - 28/63 is 19/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 63 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    27/18 = 27 × 7/18 × 7 = 189/126
  3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
    28/63 = 28 × 2/63 × 2 = 56/126
  4. Subtract the two like fractions:
    189/126 - 56/126 = 189 - 56/126 = 133/126
  5. After reducing the fraction, the answer is 19/18
  6. In mixed form: 11/18

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