Subtract 28/45 from 1/9
1/9 - 28/45 is -23/45.
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,
1/9 = 1 × 5/9 × 5 = 5/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
28/45 = 28 × 1/45 × 1 = 28/45 - Subtract the two like fractions:
5/45 - 28/45 = 5 - 28/45 = -23/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9-28/45 1/9-56/45 1/18-28/45 1/9-28/90 3/9-28/45 1/9-84/45 1/27-28/45 5/9-28/45 1/45-28/45 7/9-28/45 1/63-28/45