Subtract 3/9 from 70/12
1st number: 5 10/12, 2nd number: 3/9
70/12 - 3/9 is 11/2.
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,
70/12 = 70 × 3/12 × 3 = 210/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
3/9 = 3 × 4/9 × 4 = 12/36 - Subtract the two like fractions:
210/36 - 12/36 = 210 - 12/36 = 198/36 - After reducing the fraction, the answer is 11/2
- In mixed form: 51/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12-6/9 70/24-3/9 70/12-3/18 70/36-3/9 70/12-3/27 70/12-15/9 70/60-3/9 70/12-3/45 70/12-21/9 70/84-3/9 70/12-3/63