Subtract 25/45 from 98/20
1st number: 4 18/20, 2nd number: 25/45
98/20 - 25/45 is 391/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 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 45 × 4 = 180,
25/45 = 25 × 4/45 × 4 = 100/180 - Subtract the two like fractions:
882/180 - 100/180 = 882 - 100/180 = 782/180 - After reducing the fraction, the answer is 391/90
- In mixed form: 431/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-50/45 98/40-25/45 98/20-25/90 98/20-75/45 98/60-25/45