Subtract 32/20 from 21/6
1st number: 3 3/6, 2nd number: 1 12/20
21/6 - 32/20 is 19/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 6 × 10 = 60,
21/6 = 21 × 10/6 × 10 = 210/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
32/20 = 32 × 3/20 × 3 = 96/60 - Subtract the two like fractions:
210/60 - 96/60 = 210 - 96/60 = 114/60 - After reducing the fraction, the answer is 19/10
- In mixed form: 19/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/6-32/20 21/6-64/20 21/12-32/20 21/6-32/40 63/6-32/20 21/6-96/20 21/18-32/20 21/6-32/60 21/30-32/20 21/42-32/20