Explain the steps you used to solve it

I really need help with this work

0.056 = 56 * 0.001

-0.004 = -4 * 0.001

Then

0.056 / (-0.004) = 56 / (-4)

because the common factor 0.001 cancels.

Next, 56 = 28 * 4, and 4/(-4) = -1. So

0.056 / (-0.004) = 56 / (-4)

... = (28 * 4) / (-4)

... = 28 * (-1)

... = -28

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0