Please help me with my summer math packet!?

Question

i have to do a summer math packet and i'm caught on 2 questions.here are the questions.

#1 a box of bolts weigh 1 7/8 lb. Dave used 2 1/3 boxes to assemble 35 tablets for a computer lab. how many pounds of bolts did he use?

#2 a new section of highway will be 7 1/2 miles long. it is 2/3 completed. how many more miles must be built to complete the project?

thx alot. and if u can answer then please put which # u answered. thx

Answer 1

Guy above me has 1st one wrong.

1 7/8 = 15/8

2 1/3 = 7/3

15/8 x 7/3 = 105/24 = 4 3/8

Answer 2

1) 1 7/8  X  2 1/3=   4 3/8 lbs.

#2.) 7 1/2  X  1/3=  2 1/2 miles.

Answer 3

1. 4 3/8 lbs.(15/8 * 7/3 = 35/8 = 4 3/8 )

2. 2.5 miles (15/2 * 1/3 = 5/2 = 2 1/2)