02 Íàéäèòå çíà÷åíèå âûðàæåíèÿ  `+`(`/`(3, 4), -`/`(1, 5)). 

ÐÅØÅÍÈÅ 

 

3/4-1/5 

http://www.wolframalpha.com/input/?i=3%2F4-1%2F5 

ÎÒÂÅÒ 

0.55