化简比,并求比值. 0.12:56 5/6:10/9.
问题描述:
化简比,并求比值.
0.12:56
:5 6
. 10 9
答
(1)0.12:56,
=(0.12×50):(56×50),
=6:2800,
=3:1400;
0.12:56,
=3:1400,
=3÷1400,
=
;3 1400
(2)
:5 6
,10 9
=(
×18):(5 6
×18),10 9
=15:20,
=3:4;
:5 6
,10 9
=3:4,
=3÷4,
=
.3 4