Subtract 18/80 from 54/18
1st number: 3 0/18, 2nd number: 18/80
54/18 - 18/80 is 111/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 18 × 40 = 720,
54/18 = 54 × 40/18 × 40 = 2160/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
18/80 = 18 × 9/80 × 9 = 162/720 - Subtract the two like fractions:
2160/720 - 162/720 = 2160 - 162/720 = 1998/720 - After reducing the fraction, the answer is 111/40
- In mixed form: 231/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/18-36/80 54/36-18/80 54/18-54/80 54/18-90/80 54/90-18/80