Subtract 21/8 from 50/5
1st number: 10 0/5, 2nd number: 2 5/8
50/5 - 21/8 is 59/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 5 × 8 = 40,
50/5 = 50 × 8/5 × 8 = 400/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
21/8 = 21 × 5/8 × 5 = 105/40 - Subtract the two like fractions:
400/40 - 105/40 = 400 - 105/40 = 295/40 - After reducing the fraction, the answer is 59/8
- In mixed form: 73/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/5-42/8 50/10-21/8 50/5-21/16 50/5-63/8 50/15-21/8 50/5-21/24 50/25-21/8 50/5-21/40 50/35-21/8 50/5-21/56