Subtract 12/27 from 70/18
1st number: 3 16/18, 2nd number: 12/27
70/18 - 12/27 is 31/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 27 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
70/18 = 70 × 3/18 × 3 = 210/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
12/27 = 12 × 2/27 × 2 = 24/54 - Subtract the two like fractions:
210/54 - 24/54 = 210 - 24/54 = 186/54 - After reducing the fraction, the answer is 31/9
- In mixed form: 34/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-24/27 70/36-12/27 70/18-12/54 70/18-36/27 70/54-12/27 70/18-12/81 70/18-60/27 70/90-12/27 70/18-84/27