Subtract 81/18 from 20/98
1st number: 20/98, 2nd number: 4 9/18
20/98 - 81/18 is -421/98.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 18 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
20/98 = 20 × 9/98 × 9 = 180/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
81/18 = 81 × 49/18 × 49 = 3969/882 - Subtract the two like fractions:
180/882 - 3969/882 = 180 - 3969/882 = -3789/882 - After reducing the fraction, the answer is -421/98
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