First of all, I suppose that you are dividing, /. Since, you don't have any other symbols here, i.e. + -*. you work from left to right 444/88 is exactly <span>5.04545454545 </span>5.04545454545/145 is exactly <span>0.03479623824 </span>0.03479623824/140 is exactly <span>0.00024854455 </span> so the answer to this is <span>0.00024854455 </span> Hope this helps in some way ;)