[Help-bash] Is there a quick way to compute the ratio of two bash arrays using bc?

[Peng Yu]

Hi, I'd like to compute the ratios of two bash arrays. When there are
just 2 elements in each array, I simply do the following as it is the
quickest to type.

r=(
$(bc -l <<< ${x[0]}/${y[0]})
$(bc -l <<< ${x[1]}/${y[1]})
)

When there are more elements, does anybody has a better way to do it?

-- 
Regards,
Peng