8/3•3/2-27/10•(65/12-125/36
(65/12)–(125/36)=(65·3)/(12·3)–(125/36)=(195–125)/36=70/36= =35/18 (27/10)·(35/18)=(27·35)/(10·18)=(21/4) (8/3)·(3/2)=24/6=4 8/3•3/2–27/10•(65/12–125/36)= =4–(21/4)=(16/4)–(21/4)=–5/4=–1,25