Subtract 21/30 from 1/50
1/50 - 21/30 is -17/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 50 × 3 = 150,
1/50 = 1 × 3/50 × 3 = 3/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
21/30 = 21 × 5/30 × 5 = 105/150 - Subtract the two like fractions:
3/150 - 105/150 = 3 - 105/150 = -102/150 - After reducing the fraction, the answer is -17/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/50-21/30 1/50-42/30 1/50-21/60 3/50-21/30 1/50-63/30 1/50-21/90 5/50-21/30 7/50-21/30