问题
解答题
化简比. 4.2:0.7=
|
答案
(1)4.2:0.7=
=4.2 0.7
=6:1;42 7
(2)
:2 3
=4 9
×2 3
=9 4
=3:2;3 2
(3)
:15 2
=5 3
×15 2
=3 5
=9:2.9 2
化简比. 4.2:0.7=
|
(1)4.2:0.7=
=4.2 0.7
=6:1;42 7
(2)
:2 3
=4 9
×2 3
=9 4
=3:2;3 2
(3)
:15 2
=5 3
×15 2
=3 5
=9:2.9 2