Subtract 6/9 from 21/50
21/50 - 6/9 is -37/150.
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,
6/9 = 6 × 50/9 × 50 = 300/450 - Subtract the two like fractions:
189/450 - 300/450 = 189 - 300/450 = -111/450 - After reducing the fraction, the answer is -37/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/50-6/9 21/50-12/9 21/50-6/18 63/50-6/9 21/50-18/9 21/50-6/27 21/50-30/9 21/50-6/45 21/50-42/9 21/50-6/63