Subtract 12/20 from 12/3
1st number: 4 0/3, 2nd number: 12/20
12/3 - 12/20 is 17/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 3 × 20 = 60,
12/3 = 12 × 20/3 × 20 = 240/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
12/20 = 12 × 3/20 × 3 = 36/60 - Subtract the two like fractions:
240/60 - 36/60 = 240 - 36/60 = 204/60 - After reducing the fraction, the answer is 17/5
- In mixed form: 32/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-12/20 12/3-24/20 12/6-12/20 12/3-12/40 36/3-12/20 12/3-36/20 12/9-12/20 12/3-12/60 60/3-12/20 12/3-60/20 12/15-12/20 84/3-12/20 12/3-84/20 12/21-12/20