Subtract 12/16 from 30/63
30/63 - 12/16 is -23/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
30/63 = 30 × 16/63 × 16 = 480/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
12/16 = 12 × 63/16 × 63 = 756/1008 - Subtract the two like fractions:
480/1008 - 756/1008 = 480 - 756/1008 = -276/1008 - After reducing the fraction, the answer is -23/84
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