Subtract 54/80 from 45/2
1st number: 22 1/2, 2nd number: 54/80
45/2 - 54/80 is 873/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
45/2 = 45 × 40/2 × 40 = 1800/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
54/80 = 54 × 1/80 × 1 = 54/80 - Subtract the two like fractions:
1800/80 - 54/80 = 1800 - 54/80 = 1746/80 - After reducing the fraction, the answer is 873/40
- In mixed form: 2133/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/2-54/80 45/4-54/80 45/6-54/80 45/10-54/80 45/14-54/80