Subtract 28/54 from 42/98
42/98 - 28/54 is -17/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 54 is 2646
Next, find the equivalent fraction of both fractional numbers with denominator 2646 - For the 1st fraction, since 98 × 27 = 2646,
42/98 = 42 × 27/98 × 27 = 1134/2646 - Likewise, for the 2nd fraction, since 54 × 49 = 2646,
28/54 = 28 × 49/54 × 49 = 1372/2646 - Subtract the two like fractions:
1134/2646 - 1372/2646 = 1134 - 1372/2646 = -238/2646 - After reducing the fraction, the answer is -17/189
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