Subtract 4/15 from 18/98, Solve 18/98

Subtract 4/15 from 18/98

18/98 - 4/15 is -61/735.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 15 is 1470

Next, find the equivalent fraction of both fractional numbers with denominator 1470
For the 1st fraction, since 98 × 15 = 1470,
18/98 = 18 × 15/98 × 15 = 270/1470
Likewise, for the 2nd fraction, since 15 × 98 = 1470,
4/15 = 4 × 98/15 × 98 = 392/1470
Subtract the two like fractions:
270/1470 - 392/1470 = 270 - 392/1470 = -122/1470
After reducing the fraction, the answer is -61/735

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