Subtract 54/90 from 40/98
40/98 - 54/90 is -47/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
40/98 = 40 × 45/98 × 45 = 1800/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
54/90 = 54 × 49/90 × 49 = 2646/4410 - Subtract the two like fractions:
1800/4410 - 2646/4410 = 1800 - 2646/4410 = -846/4410 - After reducing the fraction, the answer is -47/245
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