Subtract 18/98 from 81/20
1st number: 4 1/20, 2nd number: 18/98
81/20 - 18/98 is 3789/980.
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,
81/20 = 81 × 49/20 × 49 = 3969/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
18/98 = 18 × 10/98 × 10 = 180/980 - Subtract the two like fractions:
3969/980 - 180/980 = 3969 - 180/980 = 3789/980 - In mixed form: 3849/980
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