Subtract 21/98 from 1/2
1/2 - 21/98 is 2/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 98 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 2 × 49 = 98,
1/2 = 1 × 49/2 × 49 = 49/98 - Likewise, for the 2nd fraction, since 98 × 1 = 98,
21/98 = 21 × 1/98 × 1 = 21/98 - Subtract the two like fractions:
49/98 - 21/98 = 49 - 21/98 = 28/98 - After reducing the fraction, the answer is 2/7
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