Multiply number of kids shoes lined up (5 pairs) by inches per shoe (9 2/3").
= 5 pairs * 9 2/3 inches per shoe
convert to improper fraction
= 5 * 29/3
multiply numerators
= (5*29)/3
= 145/3
convert back to mixed number
= 48 1/3 inches
ANSWER: 5 pair of size 8 shoes lined up will be 48 1/3 inches long.
Hope this helps! :)