Subtract 35/45 from 7/18
7/18 - 35/45 is -7/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 45 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 45 × 2 = 90,
35/45 = 35 × 2/45 × 2 = 70/90 - Subtract the two like fractions:
35/90 - 70/90 = 35 - 70/90 = -35/90 - After reducing the fraction, the answer is -7/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/18-35/45 7/18-70/45 7/36-35/45 7/18-35/90 21/18-35/45 7/54-35/45 35/18-35/45 7/90-35/45 49/18-35/45