Subtract 20/9 from 50/4
1st number: 12 2/4, 2nd number: 2 2/9
50/4 - 20/9 is 185/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
50/4 = 50 × 9/4 × 9 = 450/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
20/9 = 20 × 4/9 × 4 = 80/36 - Subtract the two like fractions:
450/36 - 80/36 = 450 - 80/36 = 370/36 - After reducing the fraction, the answer is 185/18
- In mixed form: 105/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/4-40/9 50/8-20/9 50/4-20/18 50/4-60/9 50/12-20/9 50/4-20/27 50/20-20/9 50/4-20/45 50/28-20/9 50/4-20/63