Subtract 12/24 from 21/6
1st number: 3 3/6, 2nd number: 12/24
21/6 - 12/24 is 3/1.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 6 × 4 = 24,
21/6 = 21 × 4/6 × 4 = 84/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
12/24 = 12 × 1/24 × 1 = 12/24 - Subtract the two like fractions:
84/24 - 12/24 = 84 - 12/24 = 72/24 - After reducing the fraction, the answer is 3/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-12/24 21/12-12/24 21/6-12/48 63/6-12/24 21/6-36/24 21/18-12/24 21/6-12/72 21/6-60/24 21/30-12/24 21/6-84/24 21/42-12/24