Subtract 18/5 from 7/98
1st number: 7/98, 2nd number: 3 3/5
7/98 - 18/5 is -247/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 5 is 490
Next, find the equivalent fraction of both fractional numbers with denominator 490 - For the 1st fraction, since 98 × 5 = 490,
7/98 = 7 × 5/98 × 5 = 35/490 - Likewise, for the 2nd fraction, since 5 × 98 = 490,
18/5 = 18 × 98/5 × 98 = 1764/490 - Subtract the two like fractions:
35/490 - 1764/490 = 35 - 1764/490 = -1729/490 - After reducing the fraction, the answer is -247/70
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