Subtract 40/45 from 2/9
2/9 - 40/45 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,
2/9 = 2 × 5/9 × 5 = 10/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
40/45 = 40 × 1/45 × 1 = 40/45 - Subtract the two like fractions:
10/45 - 40/45 = 10 - 40/45 = -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: 4/9-40/45 2/9-80/45 2/18-40/45 2/9-40/90 6/9-40/45 2/27-40/45 10/9-40/45 2/45-40/45 14/9-40/45 2/63-40/45