Subtract 15/49 from 6/81
6/81 - 15/49 is -307/1323.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 49 is 3969
Next, find the equivalent fraction of both fractional numbers with denominator 3969 - For the 1st fraction, since 81 × 49 = 3969,
6/81 = 6 × 49/81 × 49 = 294/3969 - Likewise, for the 2nd fraction, since 49 × 81 = 3969,
15/49 = 15 × 81/49 × 81 = 1215/3969 - Subtract the two like fractions:
294/3969 - 1215/3969 = 294 - 1215/3969 = -921/3969 - After reducing the fraction, the answer is -307/1323
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