Subtract 3/10 from 7/18
7/18 - 3/10 is 4/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Likewise, for the 2nd fraction, since 10 × 9 = 90,
3/10 = 3 × 9/10 × 9 = 27/90 - Subtract the two like fractions:
35/90 - 27/90 = 35 - 27/90 = 8/90 - After reducing the fraction, the answer is 4/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18-3/10 7/18-6/10 7/36-3/10 7/18-3/20 21/18-3/10 7/18-9/10 7/54-3/10 7/18-3/30 35/18-3/10 7/18-15/10 7/90-3/10 7/18-3/50 49/18-3/10 7/18-21/10 7/18-3/70