Subtract 3/16 from 40/81
40/81 - 3/16 is 397/1296.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 16 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 81 × 16 = 1296,
40/81 = 40 × 16/81 × 16 = 640/1296 - Likewise, for the 2nd fraction, since 16 × 81 = 1296,
3/16 = 3 × 81/16 × 81 = 243/1296 - Subtract the two like fractions:
640/1296 - 243/1296 = 640 - 243/1296 = 397/1296
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