Subtract 20/18 from 7/98
1st number: 7/98, 2nd number: 1 2/18
7/98 - 20/18 is -131/126.
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,
7/98 = 7 × 9/98 × 9 = 63/882 - Likewise, for the 2nd fraction, since 18 × 49 = 882,
20/18 = 20 × 49/18 × 49 = 980/882 - Subtract the two like fractions:
63/882 - 980/882 = 63 - 980/882 = -917/882 - After reducing the fraction, the answer is -131/126
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