Subtract 27/12 from 70/18
1st number: 3 16/18, 2nd number: 2 3/12
70/18 - 27/12 is 59/36.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 12 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 18 × 2 = 36,
70/18 = 70 × 2/18 × 2 = 140/36 - Likewise, for the 2nd fraction, since 12 × 3 = 36,
27/12 = 27 × 3/12 × 3 = 81/36 - Subtract the two like fractions:
140/36 - 81/36 = 140 - 81/36 = 59/36 - In mixed form: 123/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/18-54/12 70/36-27/12 70/18-27/24 70/18-81/12 70/54-27/12 70/18-27/36 70/90-27/12 70/18-27/60 70/18-27/84