Subtract 3/54 from 40/18
1st number: 2 4/18, 2nd number: 3/54
40/18 - 3/54 is 13/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 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 54 × 1 = 54,
3/54 = 3 × 1/54 × 1 = 3/54 - Subtract the two like fractions:
120/54 - 3/54 = 120 - 3/54 = 117/54 - After reducing the fraction, the answer is 13/6
- In mixed form: 21/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/18-3/54 40/18-6/54 40/36-3/54 40/18-9/54 40/54-3/54 40/18-15/54 40/90-3/54 40/18-21/54