Subtract 21/12 from 6/2
1st number: 3 0/2, 2nd number: 1 9/12
6/2 - 21/12 is 5/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 2 × 6 = 12,
6/2 = 6 × 6/2 × 6 = 36/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
21/12 = 21 × 1/12 × 1 = 21/12 - Subtract the two like fractions:
36/12 - 21/12 = 36 - 21/12 = 15/12 - After reducing the fraction, the answer is 5/4
- In mixed form: 11/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/2-21/12 6/2-42/12 6/4-21/12 6/2-21/24 18/2-21/12 6/2-63/12 6/2-21/36 30/2-21/12 6/10-21/12 6/2-21/60 42/2-21/12 6/14-21/12 6/2-21/84