how wuld I write 2/5 as a decimal

Divide the numerator by the denominator.

2/5 = 0.4

2/5=(2*2)/(2*5)=4/10=0.4

To write 2/5 as a decimal, you need to divide the numerator (2) by the denominator (5). Here's how you can do it:

1. Set up the division problem: Place the numerator (2) inside the division symbol (÷), and the denominator (5) outside the division symbol.

```
2
-----
5
```

2. Perform the division: Divide 2 by 5. The quotient will be your decimal representation.

```
0.4
-----
5
```

Therefore, 2/5 can be written as 0.4 in decimal form.