Subtract 16/45 from 98/20
1st number: 4 18/20, 2nd number: 16/45
98/20 - 16/45 is 409/90.
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,
16/45 = 16 × 4/45 × 4 = 64/180 - Subtract the two like fractions:
882/180 - 64/180 = 882 - 64/180 = 818/180 - After reducing the fraction, the answer is 409/90
- In mixed form: 449/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-32/45 98/40-16/45 98/20-16/90 98/20-48/45 98/60-16/45 98/20-80/45