问题
解答题
化简比,再求比值.
|
答案
(1)45:150,
=(45÷15):(150÷15),
=3:10;
45:150,
=3:10,
=3÷10,
=
.3 10
(2)150米:2千米,
=150米:2000米,
=(150÷50):(2000÷50),
=3:40;
150米:2千米,
=3:40,
=3÷40,
=
.3 40
化简比,再求比值.
|
(1)45:150,
=(45÷15):(150÷15),
=3:10;
45:150,
=3:10,
=3÷10,
=
.3 10
(2)150米:2千米,
=150米:2000米,
=(150÷50):(2000÷50),
=3:40;
150米:2千米,
=3:40,
=3÷40,
=
.3 40