How does knowing 1/5 of 10 you find 3/5 of 10? draw a picture to explain your thinking.

If the problem is,

By finding it,

Take a 5 box grid in which each box represents 1 unit,

Then take 1 box of this grid,

Repeat this step,

Finally, Add them,

We get,

A grid having 10 boxes with 2 taken boxes,

Thus,

When we do these steps for three grids we will get ,

That is, by multiplying the result of by 3 we will obtain

hello! just here for points! though i wish i knew!