Subtract 18/49 from 21/98
21/98 - 18/49 is -15/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 49 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 49 × 2 = 98,
18/49 = 18 × 2/49 × 2 = 36/98 - Subtract the two like fractions:
21/98 - 36/98 = 21 - 36/98 = -15/98
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