Subtract 20/50 from 12/3
1st number: 4 0/3, 2nd number: 20/50
12/3 - 20/50 is 18/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 3 × 50 = 150,
12/3 = 12 × 50/3 × 50 = 600/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
20/50 = 20 × 3/50 × 3 = 60/150 - Subtract the two like fractions:
600/150 - 60/150 = 600 - 60/150 = 540/150 - 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: 24/3-20/50 12/3-40/50 12/6-20/50 36/3-20/50 12/3-60/50 12/9-20/50 60/3-20/50 12/15-20/50 84/3-20/50 12/21-20/50