Subtract 5/45 from 7/9
7/9 - 5/45 is 2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
7/9 = 7 × 5/9 × 5 = 35/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
5/45 = 5 × 1/45 × 1 = 5/45 - Subtract the two like fractions:
35/45 - 5/45 = 35 - 5/45 = 30/45 - After reducing the fraction, the answer is 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9-5/45 7/9-10/45 7/18-5/45 7/9-5/90 21/9-5/45 7/9-15/45 7/27-5/45 35/9-5/45 7/9-25/45 7/45-5/45 49/9-5/45 7/9-35/45 7/63-5/45