Question

porque 1,5 x 1,5 x 1,5 da 3,375?

Answer 1

1,5 x 1.5 x 1,5 = 15/10 x 15/10 x 15/10 = 3375/1000 = 3,375

Espero ter ajudado.

Answer 2

1,5 = 15/10 = 3/2
3/2 * 3/2 * 3/2 = (3 * 3 * 3)/(2 * 2 * 2) = 3³/2³ = 27/8
27/8 = 24/8 + 3/8 = 3 + 1/8 * 3 = 3 + 0.125 * 3 = 3 + 0,375 = 3,375