Subtract 50/40 from 20/3
1st number: 6 2/3, 2nd number: 1 10/40
20/3 - 50/40 is 65/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 3 × 40 = 120,
20/3 = 20 × 40/3 × 40 = 800/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
50/40 = 50 × 3/40 × 3 = 150/120 - Subtract the two like fractions:
800/120 - 150/120 = 800 - 150/120 = 650/120 - After reducing the fraction, the answer is 65/12
- In mixed form: 55/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/3-50/40 20/6-50/40 20/3-50/80 60/3-50/40 20/9-50/40 20/15-50/40 20/21-50/40