Subtract 50/24 from 21/12
1st number: 1 9/12, 2nd number: 2 2/24
21/12 - 50/24 is -1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
21/12 = 21 × 2/12 × 2 = 42/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
50/24 = 50 × 1/24 × 1 = 50/24 - Subtract the two like fractions:
42/24 - 50/24 = 42 - 50/24 = -8/24 - After reducing the fraction, the answer is -1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/12-50/24 21/24-50/24 21/12-50/48 63/12-50/24 21/36-50/24 21/12-50/72 21/60-50/24 21/84-50/24