问题
解答题
求比值 49:28
4.5:0.45. |
答案
(1)49:28,
=49÷28,
=
,49 28
=
;7 4
(2)
:3 7
,5 21
=
÷3 7
,5 21
=
×3 7
,21 5
=
;9 5
(3)
,102 68
=102÷68,
=1.5;
(4)4.5:0.45,
=4.5÷0.45
=10.
求比值 49:28
4.5:0.45. |
(1)49:28,
=49÷28,
=
,49 28
=
;7 4
(2)
:3 7
,5 21
=
÷3 7
,5 21
=
×3 7
,21 5
=
;9 5
(3)
,102 68
=102÷68,
=1.5;
(4)4.5:0.45,
=4.5÷0.45
=10.