Subtract 5/50 from 21/8
1st number: 2 5/8, 2nd number: 5/50
21/8 - 5/50 is 101/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 50 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 8 × 25 = 200,
21/8 = 21 × 25/8 × 25 = 525/200 - Likewise, for the 2nd fraction, since 50 × 4 = 200,
5/50 = 5 × 4/50 × 4 = 20/200 - Subtract the two like fractions:
525/200 - 20/200 = 525 - 20/200 = 505/200 - After reducing the fraction, the answer is 101/40
- In mixed form: 221/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8-5/50 21/8-10/50 21/16-5/50 63/8-5/50 21/8-15/50 21/24-5/50 21/8-25/50 21/40-5/50 21/8-35/50 21/56-5/50