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在上面的括号里填上适当的分数,在下面的括号里填上适当的小数.(1)a,121320,d,e;(2)b,c.

题目详情

1
2
 
13
20
,d______,e______;

 (2)b______,c______.
1
2
1122
13
20
,d______,e______;

 (2)b______,c______.
13
20
13132020

▼优质解答
答案和解析
(1)0.2=
2
10
=
1
5
,所以a=
1
5

1.4=1
4
10
=1
2
5
,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
2
10
222101010=
1
5
,所以a=
1
5

1.4=1
4
10
=1
2
5
,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
5
111555,所以a=
1
5

1.4=1
4
10
=1
2
5
,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
5
111555;
1.4=1
4
10
=1
2
5
,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
4
10
444101010=1
2
5
,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
2
5
222555,所以e=1
2
5

d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
2
5
222555;
d=1=
10
10

(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1=
10
10
101010101010.
(2)
1
2
=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
2
111222=0.5所以b=0.5;
13
20
=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
13
20
131313202020=0.65,所以c=0.65.
故答案为:
1
5
,1
2
5
10
10
,0.5,0.65.
1
5
111555,1
2
5
222555,
10
10
101010101010,0.5,0.65.