Subtract 90/98 from 9/30
9/30 - 90/98 is -303/490.
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,
9/30 = 9 × 49/30 × 49 = 441/1470 - Likewise, for the 2nd fraction, since 98 × 15 = 1470,
90/98 = 90 × 15/98 × 15 = 1350/1470 - Subtract the two like fractions:
441/1470 - 1350/1470 = 441 - 1350/1470 = -909/1470 - After reducing the fraction, the answer is -303/490
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