Subtract 40/9 from 4/12
1st number: 4/12, 2nd number: 4 4/9
4/12 - 40/9 is -37/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
4/12 = 4 × 3/12 × 3 = 12/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
40/9 = 40 × 4/9 × 4 = 160/36 - Subtract the two like fractions:
12/36 - 160/36 = 12 - 160/36 = -148/36 - After reducing the fraction, the answer is -37/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/12-40/9 4/12-80/9 4/24-40/9 4/12-40/18 4/36-40/9 4/12-40/27 20/12-40/9 4/60-40/9 4/12-40/45 28/12-40/9 4/84-40/9 4/12-40/63