Fractions On A Number Line

I asked my friend if she could help me find
Where to write one half on the number line
She said, first draw a line with two arrows
Then she sang a cool song, here's how it goes

Zero to one is the whole that we split apart
The denominator tells us into how many parts
Make a line that starts from zero to the first mark
And one half is what you'll find when you get that far

My stuffed animal can't talk, but I thought I heard
Hey Ben, on the number line, where's one third
I said, first draw a line with two arrows
And hey, I know a cool tune, here's how it goes

Zero to one is the whole that we split apart
The denominator tells us into how many parts
Make a line that starts from zero to the first mark
And one-third is what you'll find when you get that far

Then I texted my friend, what's to be done
When the numerator isn't one
She said, let's try to find five over nine
On the number line in like no time
Simply partition nine parts from zero to one
Starting from zero, count five and at five-ninths we arrive

Zero to one is the whole that we split apart
The denominator tells us into how many parts
Make a line that starts from zero to the fifth mark
And five-ninths is what you'll find when you get that far

Let's use the number line to describe this pie
First count the total pieces, there are five
Five's the denominator, all the parts
So five goes underneath the fraction bar
This number line goes from zero to two
But the fraction's less than one, so here's what to do
Make five equal spaces from zero to one
Now the final step before we're done
The numerator is the one piece that's mine
After the first space, I'll write one fifth over the line
Just remember this one tip in your minds
Always count the spaces, never the lines

Zero to one is the whole that we split apart
The denominator tells us into how many parts
Make a line that starts from zero to the first mark
And one-fifth is what you'll find when you get that far