Subtract 1/18 from 98/20
1st number: 4 18/20, 2nd number: 1/18
98/20 - 1/18 is 218/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 18 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
98/20 = 98 × 9/20 × 9 = 882/180 - Likewise, for the 2nd fraction, since 18 × 10 = 180,
1/18 = 1 × 10/18 × 10 = 10/180 - Subtract the two like fractions:
882/180 - 10/180 = 882 - 10/180 = 872/180 - After reducing the fraction, the answer is 218/45
- In mixed form: 438/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-2/18 98/40-1/18 98/20-1/36 98/20-3/18 98/60-1/18 98/20-1/54 98/20-5/18 98/20-1/90 98/20-7/18