Subtract 3/8 from 98/20
1st number: 4 18/20, 2nd number: 3/8
98/20 - 3/8 is 181/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 20 × 2 = 40,
98/20 = 98 × 2/20 × 2 = 196/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
3/8 = 3 × 5/8 × 5 = 15/40 - Subtract the two like fractions:
196/40 - 15/40 = 196 - 15/40 = 181/40 - In mixed form: 421/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-6/8 98/40-3/8 98/20-3/16 98/20-9/8 98/60-3/8 98/20-3/24 98/20-15/8 98/20-3/40 98/20-21/8 98/20-3/56