Subtract 24/9 from 72/12
1st number: 6 0/12, 2nd number: 2 6/9
72/12 - 24/9 is 10/3.
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,
72/12 = 72 × 3/12 × 3 = 216/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
24/9 = 24 × 4/9 × 4 = 96/36 - Subtract the two like fractions:
216/36 - 96/36 = 216 - 96/36 = 120/36 - After reducing the fraction, the answer is 10/3
- In mixed form: 31/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12-48/9 72/24-24/9 72/12-24/18 72/12-72/9 72/36-24/9 72/12-24/27 72/60-24/9 72/12-24/45 72/84-24/9 72/12-24/63