Subtract 1/20 from 98/45
1st number: 2 8/45, 2nd number: 1/20
98/45 - 1/20 is 383/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 20 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 45 × 4 = 180,
98/45 = 98 × 4/45 × 4 = 392/180 - Likewise, for the 2nd fraction, since 20 × 9 = 180,
1/20 = 1 × 9/20 × 9 = 9/180 - Subtract the two like fractions:
392/180 - 9/180 = 392 - 9/180 = 383/180 - In mixed form: 223/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/45-2/20 98/90-1/20 98/45-1/40 98/45-3/20 98/45-1/60 98/45-5/20 98/45-7/20