Предмет: Математика, автор: mumypmamepob

От мотка верёвки длиной 18 метров отрезали 3/4 её длины.
Сколько метров верёвки осталось?

Сделайте ответ в дробях , а не 13,5 или что то такое.

Ответы

Автор ответа: bockovaleksey
0

Ответ:

18*3/4=9*3/2=27/2=13целых1/2м веревки отрезали

2) 18-13 1/2=18/1-27/2=36/2-27/2=9/2=4целых1/2м веревки осталось

проверка:

13 1/2+4 1/2=18м веревки было

Пошаговое объяснение:

mumypmamepob: Откуда в первом действие взялось 9*3/2?
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