Subtract 25/30 from 10/98, Solve 10/98

Subtract 25/30 from 10/98

10/98 - 25/30 is -215/294.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 30 is 1470

Next, find the equivalent fraction of both fractional numbers with denominator 1470
For the 1st fraction, since 98 × 15 = 1470,
10/98 = 10 × 15/98 × 15 = 150/1470
Likewise, for the 2nd fraction, since 30 × 49 = 1470,
25/30 = 25 × 49/30 × 49 = 1225/1470
Subtract the two like fractions:
150/1470 - 1225/1470 = 150 - 1225/1470 = -1075/1470
After reducing the fraction, the answer is -215/294

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