Subtract 2/7 from 21/98
21/98 - 2/7 is -1/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 7 is 98
Next, find the equivalent fraction of both fractional numbers with denominator 98 - For the 1st fraction, since 98 × 1 = 98,
21/98 = 21 × 1/98 × 1 = 21/98 - Likewise, for the 2nd fraction, since 7 × 14 = 98,
2/7 = 2 × 14/7 × 14 = 28/98 - Subtract the two like fractions:
21/98 - 28/98 = 21 - 28/98 = -7/98 - After reducing the fraction, the answer is -1/14
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