Subtract 40/60 from 81/2
1st number: 40 1/2, 2nd number: 40/60
81/2 - 40/60 is 239/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 2 × 30 = 60,
81/2 = 81 × 30/2 × 30 = 2430/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
40/60 = 40 × 1/60 × 1 = 40/60 - Subtract the two like fractions:
2430/60 - 40/60 = 2430 - 40/60 = 2390/60 - After reducing the fraction, the answer is 239/6
- In mixed form: 395/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2-80/60 81/4-40/60 81/6-40/60 81/10-40/60 81/14-40/60