Предмет: Математика, автор: Зара7878

запишите переводческую десятичную дробь в виде обыкновенной,а)-0,5,в)2,1(3),с)1,11(2)

Ответы

Автор ответа: PoliRosk

1

а) -0.5 = -5/10 = - 1/2

в) 2,1(3)=2 (13-1)/90=2 12/90=2 2/15=32/15

с) 1.11(2)=1(112-1)/90=111/90 = 37/30

Зара7878: это точно правильно?

PoliRosk: под а и под в уверенна

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