Предмет: Математика, автор: Igorek13

помогите пожалуйста решить задачу:Масса козленка 6 3/4кг,а масса поросенка в 3 раза больше.На сколько килограммов масса козленка меньше массы поросенка?

Ответы

Автор ответа: Tsukiro

1) 6 3/4 х 3=20.25кг. (6.75 х 3) - масса поросёнка
2) 20.25 - 6.75=13.5кг.
Ответ: на 13.5 кг. масса козлёнка меньше массы порсёнка.

или:

1) 6 3/4 х 3=20 1/4 кг. - масса поросёнка
2) 20 1/4 - 6 3/4=13 2/4 кг. = 13 1/2 кг.
Ответ: на 13 1/2 кг. масса козлёнка меньше массы порсёнка.

Автор ответа: Костяша

6 3/4=27/4 кг - масса козленка

3*27/4=81/4 кг - масса поросенка

81/4-27/4=54/4 кг=13,5 кг - масса меньше

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