问题
解答题
1:0.45的最简整数比是______,比值是______.
答案
(1)1:0.45,
=(1×100):(0.45×100),
=100:45,
=(100÷5):(45÷5),
=20:9;
(2)1:0.45,
=1÷0.45,
=
,20 9
故答案为:20:9;
.20 9
1:0.45的最简整数比是______,比值是______.
(1)1:0.45,
=(1×100):(0.45×100),
=100:45,
=(100÷5):(45÷5),
=20:9;
(2)1:0.45,
=1÷0.45,
=
,20 9
故答案为:20:9;
.20 9