Subtract 98/5 from 8/98, Solve 8/98

Subtract 98/5 from 8/98

1^st number: 8/98, 2^nd number: 19 3/5

8/98 - 98/5 is -4782/245.

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,
8/98 = 8 × 5/98 × 5 = 40/490
Likewise, for the 2nd fraction, since 5 × 98 = 490,
98/5 = 98 × 98/5 × 98 = 9604/490
Subtract the two like fractions:
40/490 - 9604/490 = 40 - 9604/490 = -9564/490
After reducing the fraction, the answer is -4782/245

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad