Subtract 9/27 from 70/12
1st number: 5 10/12, 2nd number: 9/27
70/12 - 9/27 is 11/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 12 × 9 = 108,
70/12 = 70 × 9/12 × 9 = 630/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
9/27 = 9 × 4/27 × 4 = 36/108 - Subtract the two like fractions:
630/108 - 36/108 = 630 - 36/108 = 594/108 - 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: 70/12-18/27 70/24-9/27 70/12-9/54 70/36-9/27 70/12-9/81 70/12-45/27 70/60-9/27 70/12-63/27 70/84-9/27