Question

Решите пожалуйста,какую часть составляют :а) 27мин от 1часа; б) 200кг от 1тонна;в)3дм от 1м; г)5суток от 1недели.

Answer 1

А) поскольку 1 час равен 60 минутам то $\frac{27}{60}= \frac{9}{20}$ или 0,45 часа
б) поскольку 1 тонна равна 1000 кг, то $\frac{200}{1000}= \frac{1}{5}$ или 0,2 тонны
в) поскольку в 1м 10 дм, то$\frac{3}{10}$ или 0,3 метра
г) в неделе 7 дней или 7 суток, то $\frac{5}{7}$ недели

Answer 2

Calculating Fractions of Units

Let's calculate the fractions for each part:

a) 27 minutes from 1 hour b) 200 kilograms from 1 ton c) 3 decimeters from 1 meter d) 5 days from 1 week

Calculations:

a) 27 minutes from 1 hour: To find what fraction of an hour 27 minutes is, we can use the fact that there are 60 minutes in an hour. So, 27 minutes is 27/60 of an hour, which simplifies to 9/20.

b) 200 kilograms from 1 ton: Since 1 ton is equal to 1000 kilograms, we can calculate the fraction as 200/1000, which simplifies to 1/5.

c) 3 decimeters from 1 meter: Since 1 meter is equal to 10 decimeters, the fraction is 3/10.

d) 5 days from 1 week: There are 7 days in a week, so the fraction is 5/7.

Summary:

a) 27 minutes from 1 hour is 9/20 of an hour. b) 200 kilograms from 1 ton is 1/5 of a ton. c) 3 decimeters from 1 meter is 3/10 of a meter. d) 5 days from 1 week is 5/7 of a week.