Subtract 7/98 from 5/42
5/42 - 7/98 is 1/21.
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,
5/42 = 5 × 7/42 × 7 = 35/294 - Likewise, for the 2nd fraction, since 98 × 3 = 294,
7/98 = 7 × 3/98 × 3 = 21/294 - Subtract the two like fractions:
35/294 - 21/294 = 35 - 21/294 = 14/294 - After reducing the fraction, the answer is 1/21
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