In JavaScript, you can work with decimals. In doing so, the integer and fractional parts are separated from each other by a dot. See an example:

```
let a = 0.5;
alert(a); // shows 0.5
```

See another example:

```
let a = 0.5 + 0.5;
alert(a); // shows 1
```

Write the number `1.5`

into the variable
`a`

and the number `0.75`

into the
variable `b`

. Find the sum of the values
of these variables and display it on the screen.