问题
解答题
|
答案
(1)63:54,
=(63÷9):(54÷9),
=7:6;
63:54,
=63÷54,
=
,7 6
(2)6:2.4,
=(6÷1.2):(2.4÷1.2),
=5:2;
6:2.4,
=6÷2.4,
=2.5;
(3)
=108:72,108 72
=(108÷36):(72÷36),
=3:2;
=108÷72=108 72
;3 2
(4)
:7 8
,5 6
=(
×24):(7 8
×24),5 6
=21:20;
:7 8
,5 6
=
÷7 8
,5 6
=
×7 8
,6 5
=
.21 20