Subtract 15/4 from 6/81
1st number: 6/81, 2nd number: 3 3/4
6/81 - 15/4 is -397/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 4 is 324
Next, find the equivalent fraction of both fractional numbers with denominator 324 - For the 1st fraction, since 81 × 4 = 324,
6/81 = 6 × 4/81 × 4 = 24/324 - Likewise, for the 2nd fraction, since 4 × 81 = 324,
15/4 = 15 × 81/4 × 81 = 1215/324 - Subtract the two like fractions:
24/324 - 1215/324 = 24 - 1215/324 = -1191/324 - After reducing the fraction, the answer is -397/108
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