Subtract 7/8 from 42/98
42/98 - 7/8 is -25/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 98 × 4 = 392,
42/98 = 42 × 4/98 × 4 = 168/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
7/8 = 7 × 49/8 × 49 = 343/392 - Subtract the two like fractions:
168/392 - 343/392 = 168 - 343/392 = -175/392 - After reducing the fraction, the answer is -25/56
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