Subtract 54/8 from 9/98, Solve 9/98

Subtract 54/8 from 9/98

1^st number: 9/98, 2^nd number: 6 6/8

9/98 - 54/8 is -1305/196.

Find the least common denominator or LCM of the two denominators:
LCM of 98 and 8 is 392

Next, find the equivalent fraction of both fractional numbers with denominator 392
For the 1st fraction, since 98 × 4 = 392,
9/98 = 9 × 4/98 × 4 = 36/392
Likewise, for the 2nd fraction, since 8 × 49 = 392,
54/8 = 54 × 49/8 × 49 = 2646/392
Subtract the two like fractions:
36/392 - 2646/392 = 36 - 2646/392 = -2610/392
After reducing the fraction, the answer is -1305/196

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