Subtract 28/80 from 1/98
1/98 - 28/80 is -333/980.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
1/98 = 1 × 40/98 × 40 = 40/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
28/80 = 28 × 49/80 × 49 = 1372/3920 - Subtract the two like fractions:
40/3920 - 1372/3920 = 40 - 1372/3920 = -1332/3920 - After reducing the fraction, the answer is -333/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/98-28/80 1/98-56/80 3/98-28/80 1/98-84/80 5/98-28/80 7/98-28/80