Subtract 9/81 from 1/16
1/16 - 9/81 is -7/144.
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,
1/16 = 1 × 81/16 × 81 = 81/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
9/81 = 9 × 16/81 × 16 = 144/1296 - Subtract the two like fractions:
81/1296 - 144/1296 = 81 - 144/1296 = -63/1296 - After reducing the fraction, the answer is -7/144
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