Subtract 21/5 from 50/12
1st number: 4 2/12, 2nd number: 4 1/5
50/12 - 21/5 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 5 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
50/12 = 50 × 5/12 × 5 = 250/60 - Likewise, for the 2nd fraction, since 5 × 12 = 60,
21/5 = 21 × 12/5 × 12 = 252/60 - Subtract the two like fractions:
250/60 - 252/60 = 250 - 252/60 = -2/60 - After reducing the fraction, the answer is -1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12-42/5 50/24-21/5 50/12-21/10 50/12-63/5 50/36-21/5 50/12-21/15 50/60-21/5 50/12-21/25 50/84-21/5 50/12-21/35