Subtract 20/18 from 50/12
1st number: 4 2/12, 2nd number: 1 2/18
50/12 - 20/18 is 55/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
50/12 = 50 × 3/12 × 3 = 150/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
20/18 = 20 × 2/18 × 2 = 40/36 - Subtract the two like fractions:
150/36 - 40/36 = 150 - 40/36 = 110/36 - After reducing the fraction, the answer is 55/18
- In mixed form: 31/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/12-40/18 50/24-20/18 50/12-20/36 50/12-60/18 50/36-20/18 50/12-20/54 50/60-20/18 50/12-20/90 50/84-20/18