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Subtract 63/4 from 12/30

1st number: 12/30, 2nd number: 15 3/4

12/30 - 63/4 is -307/20.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 4 is 60

    Next, find the equivalent fraction of both fractional numbers with denominator 60
  2. For the 1st fraction, since 30 × 2 = 60,
    12/30 = 12 × 2/30 × 2 = 24/60
  3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
    63/4 = 63 × 15/4 × 15 = 945/60
  4. Subtract the two like fractions:
    24/60 - 945/60 = 24 - 945/60 = -921/60
  5. After reducing the fraction, the answer is -307/20

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