Subtract 5/8 from 54/18
1st number: 3 0/18, 2nd number: 5/8
54/18 - 5/8 is 19/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 8 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 18 × 4 = 72,
54/18 = 54 × 4/18 × 4 = 216/72 - Likewise, for the 2nd fraction, since 8 × 9 = 72,
5/8 = 5 × 9/8 × 9 = 45/72 - Subtract the two like fractions:
216/72 - 45/72 = 216 - 45/72 = 171/72 - After reducing the fraction, the answer is 19/8
- In mixed form: 23/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18-10/8 54/36-5/8 54/18-5/16 54/18-15/8 54/18-5/24 54/18-25/8 54/90-5/8 54/18-5/40 54/18-35/8 54/18-5/56