Subtract 25/40 from 10/98
10/98 - 25/40 is -205/392.
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,
10/98 = 10 × 20/98 × 20 = 200/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
25/40 = 25 × 49/40 × 49 = 1225/1960 - Subtract the two like fractions:
200/1960 - 1225/1960 = 200 - 1225/1960 = -1025/1960 - After reducing the fraction, the answer is -205/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/98-25/40 10/98-50/40 10/98-25/80 30/98-25/40 10/98-75/40 50/98-25/40 70/98-25/40