Subtract 4/9 from 28/45
28/45 - 4/9 is 8/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 9 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 45 × 1 = 45,
28/45 = 28 × 1/45 × 1 = 28/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
4/9 = 4 × 5/9 × 5 = 20/45 - Subtract the two like fractions:
28/45 - 20/45 = 28 - 20/45 = 8/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-4/9 28/45-8/9 28/90-4/9 28/45-4/18 84/45-4/9 28/45-12/9 28/45-4/27 28/45-20/9 28/45-4/45 28/45-28/9 28/45-4/63