Subtract 98/50 from 20/45
1st number: 20/45, 2nd number: 1 48/50
20/45 - 98/50 is -341/225.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 45 × 10 = 450,
20/45 = 20 × 10/45 × 10 = 200/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
98/50 = 98 × 9/50 × 9 = 882/450 - Subtract the two like fractions:
200/450 - 882/450 = 200 - 882/450 = -682/450 - After reducing the fraction, the answer is -341/225
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/45-98/50 20/90-98/50 60/45-98/50