Subtract 8/20 from 12/3
1st number: 4 0/3, 2nd number: 8/20
12/3 - 8/20 is 18/5.
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,
8/20 = 8 × 3/20 × 3 = 24/60 - Subtract the two like fractions:
240/60 - 24/60 = 240 - 24/60 = 216/60 - After reducing the fraction, the answer is 18/5
- In mixed form: 33/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-8/20 12/3-16/20 12/6-8/20 12/3-8/40 36/3-8/20 12/3-24/20 12/9-8/20 12/3-8/60 60/3-8/20 12/3-40/20 12/15-8/20 84/3-8/20 12/3-56/20 12/21-8/20