Subtract 81/98 from 6/30
6/30 - 81/98 is -307/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 98 is 1470
Next, find the equivalent fraction of both fractional numbers with denominator 1470 - For the 1st fraction, since 30 × 49 = 1470,
6/30 = 6 × 49/30 × 49 = 294/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
81/98 = 81 × 15/98 × 15 = 1215/1470 - Subtract the two like fractions:
294/1470 - 1215/1470 = 294 - 1215/1470 = -921/1470 - After reducing the fraction, the answer is -307/490
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