Subtract 6/20 from 28/98
28/98 - 6/20 is -1/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 98 × 10 = 980,
28/98 = 28 × 10/98 × 10 = 280/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
6/20 = 6 × 49/20 × 49 = 294/980 - Subtract the two like fractions:
280/980 - 294/980 = 280 - 294/980 = -14/980 - After reducing the fraction, the answer is -1/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/98-6/20 28/98-12/20 28/98-6/40 84/98-6/20 28/98-18/20 28/98-6/60 28/98-30/20 28/98-42/20