If a rectangular prism measures 2 and 1 half cm by 3 and 1 half cm by 2 cm how many cubes with edge length 1/4th cm will fit inside the prism?

Answer 1

2.5 by 3.5 by 2

has volume 2.5(3.5)(2) = 17.5 cm^3

divide that by (1/4)^3 = .25^3 = 1/64 = (1/4)(.0625) = .015625

17.5/.015625 = 1120 cubes with edges 1/4 cm