Henry is going to make 5 toy cars. If each car requires 7/8 feet of wood, how many feet does he need?

Question

 i don't know that 

Answer 1

If Henry makes 5 cars, each requiring 7/8 feet of wood, then he'll need:

 

5 × 7/8 = 5/1 × 7/8 = (5×7) / (1×8) = 35/8 = 4 ³/₈ feet of wood

 

You can check this answer by thinking about it logically. If each car uses slightly less than 1 foot of wood, then 5 cars will use a little less than 5 feet of wood. So, our answer seems reasonable.

Answer 2

 Great answer.