Subtract 15/81 from 2/16
2/16 - 15/81 is -13/216.
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,
2/16 = 2 × 81/16 × 81 = 162/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
15/81 = 15 × 16/81 × 16 = 240/1296 - Subtract the two like fractions:
162/1296 - 240/1296 = 162 - 240/1296 = -78/1296 - After reducing the fraction, the answer is -13/216
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