Subtract 7/90 from 14/18
14/18 - 7/90 is 7/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
14/18 = 14 × 5/18 × 5 = 70/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
70/90 - 7/90 = 70 - 7/90 = 63/90 - After reducing the fraction, the answer is 7/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/18-7/90 14/18-14/90 14/36-7/90 42/18-7/90 14/18-21/90 14/54-7/90 70/18-7/90 14/18-35/90 14/90-7/90 98/18-7/90 14/18-49/90