Subtract 10/18 from 4/30
4/30 - 10/18 is -19/45.
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,
4/30 = 4 × 3/30 × 3 = 12/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
10/18 = 10 × 5/18 × 5 = 50/90 - Subtract the two like fractions:
12/90 - 50/90 = 12 - 50/90 = -38/90 - After reducing the fraction, the answer is -19/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-10/18 4/30-20/18 4/60-10/18 4/30-10/36 12/30-10/18 4/30-30/18 4/90-10/18 4/30-10/54 20/30-10/18 4/30-50/18 4/30-10/90 28/30-10/18 4/30-70/18