How do you get an answer as 18 wholes and 1/3 to a problem like 8 wholes and 1/4 multiplied by 2 wholes and 2/9

Pat listed all the numbers that have 15 as a multiple write the numbers in pats list

Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?

If a and −a are numbers on the number line, which expression must give the distance between them? a) 0 b) a c) |2a| d) |a|