Subtract 50/9 from 21/50
1st number: 21/50, 2nd number: 5 5/9
21/50 - 50/9 is -2311/450.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 9 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 50 × 9 = 450,
21/50 = 21 × 9/50 × 9 = 189/450 - Likewise, for the 2nd fraction, since 9 × 50 = 450,
50/9 = 50 × 50/9 × 50 = 2500/450 - Subtract the two like fractions:
189/450 - 2500/450 = 189 - 2500/450 = -2311/450
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-50/9 21/50-50/18 63/50-50/9 21/50-50/27 21/50-50/45 21/50-50/63