Subtract 2/18 from 3/30
3/30 - 2/18 is -1/90.
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,
3/30 = 3 × 3/30 × 3 = 9/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
2/18 = 2 × 5/18 × 5 = 10/90 - Subtract the two like fractions:
9/90 - 10/90 = 9 - 10/90 = -1/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30-2/18 3/30-4/18 3/60-2/18 3/30-2/36 9/30-2/18 3/30-6/18 3/90-2/18 3/30-2/54 15/30-2/18 3/30-10/18 3/30-2/90 21/30-2/18 3/30-14/18