Subtract 63/81 from 7/16
7/16 - 63/81 is -49/144.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 16 × 81 = 1296,
7/16 = 7 × 81/16 × 81 = 567/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
63/81 = 63 × 16/81 × 16 = 1008/1296 - Subtract the two like fractions:
567/1296 - 1008/1296 = 567 - 1008/1296 = -441/1296 - After reducing the fraction, the answer is -49/144
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