Subtract 21/36 from 21/6
1st number: 3 3/6, 2nd number: 21/36
21/6 - 21/36 is 35/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 6 × 6 = 36,
21/6 = 21 × 6/6 × 6 = 126/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
21/36 = 21 × 1/36 × 1 = 21/36 - Subtract the two like fractions:
126/36 - 21/36 = 126 - 21/36 = 105/36 - After reducing the fraction, the answer is 35/12
- In mixed form: 211/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-21/36 21/6-42/36 21/12-21/36 21/6-21/72 63/6-21/36 21/6-63/36 21/18-21/36 21/30-21/36 21/42-21/36