Subtract 3/9 from 4/45
4/45 - 3/9 is -11/45.
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,
4/45 = 4 × 1/45 × 1 = 4/45 - Likewise, for the 2nd fraction, since 9 × 5 = 45,
3/9 = 3 × 5/9 × 5 = 15/45 - Subtract the two like fractions:
4/45 - 15/45 = 4 - 15/45 = -11/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/45-3/9 4/45-6/9 4/90-3/9 4/45-3/18 12/45-3/9 4/45-3/27 20/45-3/9 4/45-15/9 4/45-3/45 28/45-3/9 4/45-21/9 4/45-3/63