02 Íàéäèòå çíà÷åíèå âûðàæåíèÿ .
ÐÅØÅÍÈÅ
4.2*(1+5/6+1+5/7)
http://www.wolframalpha.com/input/?i=4.2*%281%2B5%2F6%2B1%2B5%2F7%29
=
ÎÒÂÅÒ
14.9