Subtract 5/18 from 5/30
5/30 - 5/18 is -1/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
5/30 = 5 × 3/30 × 3 = 15/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
5/18 = 5 × 5/18 × 5 = 25/90 - Subtract the two like fractions:
15/90 - 25/90 = 15 - 25/90 = -10/90 - After reducing the fraction, the answer is -1/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/30-5/18 5/30-10/18 5/60-5/18 5/30-5/36 15/30-5/18 5/30-15/18 5/90-5/18 5/30-5/54 25/30-5/18 5/30-25/18 5/30-5/90 35/30-5/18 5/30-35/18