Subtract 24/12 from 12/9
1st number: 1 3/9, 2nd number: 2 0/12
12/9 - 24/12 is -2/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 9 × 4 = 36,
12/9 = 12 × 4/9 × 4 = 48/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
24/12 = 24 × 3/12 × 3 = 72/36 - Subtract the two like fractions:
48/36 - 72/36 = 48 - 72/36 = -24/36 - 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: 24/9-24/12 12/9-48/12 12/18-24/12 36/9-24/12 12/9-72/12 12/27-24/12 12/9-24/36 60/9-24/12 12/45-24/12 12/9-24/60 84/9-24/12 12/63-24/12 12/9-24/84