Предмет: Математика, автор: kondriksano

Какую часть целого составляет следующая часть: 250 грамм от килограмма; 45 секунд от минуты; 15 см от метра. помогите ПОЖАЛУЙСТА СРОЧНО ❗ НУЖНО ​

Ответы

Автор ответа: sergeevaolga5
1

Ответ:

1/4; 3/4; 3/20

Пошаговое объяснение:

Чтобы узнать, какую часть составляет первое число от второго, надо первое число поделить на второе, предварительно представив эти числа в одинаковых единицах измерения.

1) 250 г от 1 кг

1 кг=1000 г

250 г : 1000 г = 1/4 часть

2) 45 с от 1 мин

1 мин = 60 с

45с : 60с = 3/4 часть

3) 15 см от 1 м

1 м = 100 см

15 см : 100 см = 15/100 = 3/20 часть

*** Примечание:

Ответ можно дать и в десятичных дробях:

1/4 =0,25

3/4=0,75

15/100=0,15


kondriksano: спасибо большое
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