A÷B=5,A、B的最大公因数是 ,最小公倍数是 .
1﹣1× =0÷ == : =75%
: =0.125= %==.
9÷ == :8=0.75= %= 折.
=0.375= ÷24= %
:20==0.8=12÷ = %.