I think Ethan is right here....so boo on you!
4 15 mins in one hour
4*3=12
$${\mathtt{22}}{\mathtt{\,\times\,}}{\mathtt{55}} = {\mathtt{1\,210}}$$
First, find common denominators
They are both 12 so they are good
No subtract numerators
9-10=-1
so the answer is -1/12
