Subtract 4/18 from 6/30
6/30 - 4/18 is -1/45.
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,
6/30 = 6 × 3/30 × 3 = 18/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
4/18 = 4 × 5/18 × 5 = 20/90 - Subtract the two like fractions:
18/90 - 20/90 = 18 - 20/90 = -2/90 - After reducing the fraction, the answer is -1/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/30-4/18 6/30-8/18 6/60-4/18 6/30-4/36 18/30-4/18 6/30-12/18 6/90-4/18 6/30-4/54 6/30-20/18 6/30-4/90 42/30-4/18 6/30-28/18