Subtract 3/27 from 40/18
1st number: 2 4/18, 2nd number: 3/27
40/18 - 3/27 is 19/9.
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,
40/18 = 40 × 3/18 × 3 = 120/54 - Likewise, for the 2nd fraction, since 27 × 2 = 54,
3/27 = 3 × 2/27 × 2 = 6/54 - Subtract the two like fractions:
120/54 - 6/54 = 120 - 6/54 = 114/54 - After reducing the fraction, the answer is 19/9
- In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-3/27 40/18-6/27 40/36-3/27 40/18-3/54 40/18-9/27 40/54-3/27 40/18-3/81 40/18-15/27 40/90-3/27 40/18-21/27