Subtract 8/50 from 30/18
1st number: 1 12/18, 2nd number: 8/50
30/18 - 8/50 is 113/75.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 50 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 18 × 25 = 450,
30/18 = 30 × 25/18 × 25 = 750/450 - Likewise, for the 2nd fraction, since 50 × 9 = 450,
8/50 = 8 × 9/50 × 9 = 72/450 - Subtract the two like fractions:
750/450 - 72/450 = 750 - 72/450 = 678/450 - After reducing the fraction, the answer is 113/75
- In mixed form: 138/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18-8/50 30/18-16/50 30/36-8/50 90/18-8/50 30/18-24/50 30/54-8/50 30/18-40/50 30/90-8/50 30/18-56/50