Предмет: Математика, автор: kmkmqwh

один класс в туристический поход взял с собой 5 кг картошки, а другой 7 кг. 7/9 общего количества картошки запекли в костре. сколько кг картошки осталось? запиши ответ несократимой обыкновенной дробью

Ответы

Автор ответа: An8858

1)5+7=12 кг- картошки всего (это же число = 9/9)
2) 9/9-7/9=2/9 картошки осталось.
3) получим несократимую обыкновенную дробь:
12*2/9= 12/1*2/9= 2 2/3
Ответ: 2 2/3 кг картошки осталось.

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