Subtract 81/4 from 98/10
1st number: 9 8/10, 2nd number: 20 1/4
98/10 - 81/4 is -209/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 4 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 10 × 2 = 20,
98/10 = 98 × 2/10 × 2 = 196/20 - Likewise, for the 2nd fraction, since 4 × 5 = 20,
81/4 = 81 × 5/4 × 5 = 405/20 - Subtract the two like fractions:
196/20 - 405/20 = 196 - 405/20 = -209/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-81/4 98/10-81/8 98/30-81/4 98/10-81/12 98/50-81/4 98/10-81/20 98/70-81/4 98/10-81/28