Question

1/4 x 3/8 x 1/2x 5/8

Answer 1

1/4 x 3/8 x 1/2 x 5/8
=3/32x1/2x5/8
=3/64x5/8
=15/512
That's your answer lovely~

Answer 2

$15/512 =0.029296875$

multiplying all the fractions is 15/512