Subtract 21/50 from 8/5
1st number: 1 3/5, 2nd number: 21/50
8/5 - 21/50 is 59/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 50 is 50
Next, find the equivalent fraction of both fractional numbers with denominator 50 - For the 1st fraction, since 5 × 10 = 50,
8/5 = 8 × 10/5 × 10 = 80/50 - Likewise, for the 2nd fraction, since 50 × 1 = 50,
21/50 = 21 × 1/50 × 1 = 21/50 - Subtract the two like fractions:
80/50 - 21/50 = 80 - 21/50 = 59/50 - In mixed form: 19/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/5-21/50 8/5-42/50 8/10-21/50 24/5-21/50 8/5-63/50 8/15-21/50 40/5-21/50 8/25-21/50 56/5-21/50 8/35-21/50