Work out the product of

1
2
3
and
2
3
4

Give your answer as a mixed number.

I'm assuming you meant

1 2/3 * 2 3/4 = 5/3 * 11/4 = 55/12

But you really need to learn how to type numbers online; copy/paste does not always work too well. And always look at your post when you are done, to make sure it says what you meant.

It's not my job to figure out what you mean.
It's your job to say it so clearly you cannot be misunderstood.