Question

НАЙДИТЕ ЗНАЧЕНИЕ ВЫРАЖЕНИЯ 8-4,2:(2 5/14-1 4/21)

Answer 1

Вначале разберемся что в скобках
2 5/14=33/14
1 4/21=25/21
33/14-25/21=33*3-25*2/42=49/42=7/6
4.2/(7/6)=(4.2*7)/6=0.7*7=4.9
8-4.9=3.1
вроде так если нравиться ставь лучшее плииз

Answer 2

Calculating the Expression 8-4,2:(2+5/14-1+4/21)

To calculate the expression 8-4,2:(2+5/14-1+4/21), we can follow the order of operations, which is parentheses, exponents, multiplication and division (from left to right), and addition and subtraction (from left to right).

First, let's calculate the value of the expression inside the parentheses: 2+5/14-1+4/21

The result of the expression inside the parentheses is 2+5/14-1+4/21.

Now, let's calculate the division outside the parentheses: 8-4,2 ÷ (result of the expression inside the parentheses)

The final result of the expression 8-4,2:(2+5/14-1+4/21) is the result of the division of 8-4,2 by the value obtained from the expression inside the parentheses.

The result of the expression 8-4,2:(2+5/14-1+4/21) is to be calculated as per the above steps.