I have below txt

```
604024692;-27.34
500570067;-.0835
604013284;0.00006
603839102;-.1121

```

I want it to be:

```
604024692;27.34
500570067;0.0835
604013284;0.00006
603839102;0.1121

```

but when I run below

```
sed 's/-/\0/'

```

it gives me 

```
604024692;027.34
500570067;0.0835
604013284;0.00006
603839102;0.1121

```

I am using AIX 7.1 
Any help is appreciated.