Subtract 25/98 from 7/42
7/42 - 25/98 is -13/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 98 is 294
Next, find the equivalent fraction of both fractional numbers with denominator 294 - For the 1st fraction, since 42 × 7 = 294,
7/42 = 7 × 7/42 × 7 = 49/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
25/98 = 25 × 3/98 × 3 = 75/294 - Subtract the two like fractions:
49/294 - 75/294 = 49 - 75/294 = -26/294 - After reducing the fraction, the answer is -13/147
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