Subtract 21/10 from 50/8
1st number: 6 2/8, 2nd number: 2 1/10
50/8 - 21/10 is 83/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 8 × 5 = 40,
50/8 = 50 × 5/8 × 5 = 250/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
21/10 = 21 × 4/10 × 4 = 84/40 - Subtract the two like fractions:
250/40 - 84/40 = 250 - 84/40 = 166/40 - After reducing the fraction, the answer is 83/20
- In mixed form: 43/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8-42/10 50/16-21/10 50/8-21/20 50/8-63/10 50/24-21/10 50/8-21/30 50/40-21/10 50/8-21/50 50/56-21/10 50/8-21/70