W.A.L.T use fractions orbas to descrbe

I have 10 items in front of me 

and I have 3 yellow things and 7 not yellow 

3 out of 10

half of my my items are skinny 

one of  my items are 30cm long 

I have 5 out of 10 in a pile 

I have 3 out of 10 in a pile

I have 2 out of 10 in a pile