Answer:
15 1/12
Step-by-step explanation:
First step, add the whole numbers ie 6+8=14
Second, add fractions, 1/3+3/4
The lcm of denominators is 12 hence (4+9)/12=13/12=1 1/12
14+1 1/12=15 1/12
(30/40)*(29/39) = 29/52 =~ 0.55769
The probability is calculated assuming the cars were chosen without replacement .
use
a^2 +b^2=c^2
