Subtract 30/81 from 4/48
4/48 - 30/81 is -31/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 48 and 81 is 1296
Next, find the equivalent fraction of both fractional numbers with denominator 1296 - For the 1st fraction, since 48 × 27 = 1296,
4/48 = 4 × 27/48 × 27 = 108/1296 - Likewise, for the 2nd fraction, since 81 × 16 = 1296,
30/81 = 30 × 16/81 × 16 = 480/1296 - Subtract the two like fractions:
108/1296 - 480/1296 = 108 - 480/1296 = -372/1296 - After reducing the fraction, the answer is -31/108
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