Subtract 18/98 from 3/20
3/20 - 18/98 is -33/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
3/20 = 3 × 49/20 × 49 = 147/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
18/98 = 18 × 10/98 × 10 = 180/980 - Subtract the two like fractions:
147/980 - 180/980 = 147 - 180/980 = -33/980
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