Subtract 18/80 from 54/4
1st number: 13 2/4, 2nd number: 18/80
54/4 - 18/80 is 531/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
54/4 = 54 × 20/4 × 20 = 1080/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Subtract the two like fractions:
1080/80 - 18/80 = 1080 - 18/80 = 1062/80 - After reducing the fraction, the answer is 531/40
- In mixed form: 1311/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/4-36/80 54/8-18/80 54/4-54/80 54/12-18/80 54/4-90/80 54/20-18/80 54/28-18/80