Предмет: Математика, автор: LukeKast

найдите среднее арифмитическое чисел 2,8 и две целых 1/3

Ответы

Автор ответа: Ilametelkin

1) (2.8+(7/3))/2=154/60

Автор ответа: anyaarustamova

(2,8+1/3):2=(2 8/10+1/3):2= (2 4/5+1/3):2=
=(2 12/15+5/15):2=2 17/15:2= 3 2/15:2=
=47/2=23 1/2=23,5

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