Subtract 25/35 from 42/98
42/98 - 25/35 is -2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 35 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
42/98 = 42 × 5/98 × 5 = 210/490 - Likewise, for the 2nd fraction, since 35 × 14 = 490,
25/35 = 25 × 14/35 × 14 = 350/490 - Subtract the two like fractions:
210/490 - 350/490 = 210 - 350/490 = -140/490 - After reducing the fraction, the answer is -2/7
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