Subtract 80/98 from 35/80, Solve 35/80

Subtract 80/98 from 35/80

35/80 - 80/98 is -297/784.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 98 is 3920

Next, find the equivalent fraction of both fractional numbers with denominator 3920
For the 1st fraction, since 80 × 49 = 3920,
35/80 = 35 × 49/80 × 49 = 1715/3920
Likewise, for the 2nd fraction, since 98 × 40 = 3920,
80/98 = 80 × 40/98 × 40 = 3200/3920
Subtract the two like fractions:
1715/3920 - 3200/3920 = 1715 - 3200/3920 = -1485/3920
After reducing the fraction, the answer is -297/784

MathStep (Works offline)

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