Subtract 1/54 from 18/4
1st number: 4 2/4, 2nd number: 1/54
18/4 - 1/54 is 121/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 54 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 4 × 27 = 108,
18/4 = 18 × 27/4 × 27 = 486/108 - Likewise, for the 2nd fraction, since 54 × 2 = 108,
1/54 = 1 × 2/54 × 2 = 2/108 - Subtract the two like fractions:
486/108 - 2/108 = 486 - 2/108 = 484/108 - After reducing the fraction, the answer is 121/27
- In mixed form: 413/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/4-1/54 18/4-2/54 18/8-1/54 54/4-1/54 18/4-3/54 18/12-1/54 90/4-1/54 18/4-5/54 18/20-1/54 18/4-7/54 18/28-1/54