化简并求比值.
56:64
0.75:3
2.45:5.
化简并求比值.56:64 0.75:3 &nbs
答案:2 悬赏:80 手机版
解决时间 2021-01-26 02:35
- 提问者网友:两耳就是菩提
- 2021-01-25 05:45
最佳答案
- 五星知识达人网友:山河有幸埋战骨
- 2021-01-25 05:55
(1)56:64
=(56÷8):(64÷8)
=7:8;
56:64
=7:8
=7÷8
=
7
8 ;
(2)0.75:3
=
3
4 :3
=(
3
4 ×4):(3×4)
=3:12
=1:4;
0.75:3
=1:4
=1÷4
=
1
4 ;
(3)2.45:5
=(2.45×20):(5×20)
=49:100;
2.45:5
=49:100
=49÷100
=
49
100 .
=(56÷8):(64÷8)
=7:8;
56:64
=7:8
=7÷8
=
7
8 ;
(2)0.75:3
=
3
4 :3
=(
3
4 ×4):(3×4)
=3:12
=1:4;
0.75:3
=1:4
=1÷4
=
1
4 ;
(3)2.45:5
=(2.45×20):(5×20)
=49:100;
2.45:5
=49:100
=49÷100
=
49
100 .
全部回答
- 1楼网友:时间的尘埃
- 2021-01-25 06:33
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