Subtract 18/36 from 30/98, Solve 30/98

Subtract 18/36 from 30/98

30/98 - 18/36 is -19/98.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 36 is 1764

Next, find the equivalent fraction of both fractional numbers with denominator 1764
For the 1st fraction, since 98 × 18 = 1764,
30/98 = 30 × 18/98 × 18 = 540/1764
Likewise, for the 2nd fraction, since 36 × 49 = 1764,
18/36 = 18 × 49/36 × 49 = 882/1764
Subtract the two like fractions:
540/1764 - 882/1764 = 540 - 882/1764 = -342/1764
After reducing the fraction, the answer is -19/98

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