Subtract 14/20 from 81/2
1st number: 40 1/2, 2nd number: 14/20
81/2 - 14/20 is 199/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 20 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 2 × 10 = 20,
81/2 = 81 × 10/2 × 10 = 810/20 - Likewise, for the 2nd fraction, since 20 × 1 = 20,
14/20 = 14 × 1/20 × 1 = 14/20 - Subtract the two like fractions:
810/20 - 14/20 = 810 - 14/20 = 796/20 - After reducing the fraction, the answer is 199/5
- In mixed form: 394/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/2-28/20 81/4-14/20 81/2-14/40 81/2-42/20 81/6-14/20 81/2-14/60 81/2-70/20 81/10-14/20 81/2-98/20 81/14-14/20