In a fireplace, about 3/4 of an 18-inch log will burn in 1/3 of an hour. how many hours will it take to burn 2 1/2 logs?

3/4 =1/3 hour
how long to burn 2 and 1/2

3/4=1/3hour
1/4=1/9 hour
4/4=1=4/9hour
1/2=2/4
1/2=2/9hour
 
2 and 1/2=1+1+1/2=4/9+4/9+2/9=10/9=9/9+1/9=1+1/9=1 and 1/9

answer is C. 1 and 1/9 hour

Your answer should be 1/3. i hope i could ! good luck : )