Subtract 2/30 from 30/18
1st number: 1 12/18, 2nd number: 2/30
30/18 - 2/30 is 8/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
30/18 = 30 × 5/18 × 5 = 150/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
2/30 = 2 × 3/30 × 3 = 6/90 - Subtract the two like fractions:
150/90 - 6/90 = 150 - 6/90 = 144/90 - After reducing the fraction, the answer is 8/5
- In mixed form: 13/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18-2/30 30/18-4/30 30/36-2/30 30/18-2/60 90/18-2/30 30/18-6/30 30/54-2/30 30/18-2/90 30/18-10/30 30/90-2/30 30/18-14/30