Subtract 8/40 from 5/98
5/98 - 8/40 is -73/490.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
5/98 = 5 × 20/98 × 20 = 100/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
8/40 = 8 × 49/40 × 49 = 392/1960 - Subtract the two like fractions:
100/1960 - 392/1960 = 100 - 392/1960 = -292/1960 - After reducing the fraction, the answer is -73/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/98-8/40 5/98-16/40 5/98-8/80 15/98-8/40 5/98-24/40 25/98-8/40 35/98-8/40 5/98-56/40