Answer:
19 and 13/30
Explanation:
First make 2/3 have a common denominator with 23/30
You can do this by multiplying the numerator and denominator of 2/3 to get 20/30
Now add
20/30 + 23/30 = 43/ 30
Simplify this fraction
1 and 13/30
add this to 18
18 + 1 and 13/30 = 19 and 13/30