Question

1)-78,2:(-34); 2)8,4:0,07; 3) 1целая 8/27:(-1целая 5/9)

Answer 1

Ответ:

$- 78.2 \div ( - 34) = 2.3$

$8.4 \div 0.07 = 120$

Answer 2

To solve the given expressions, let's break them down step by step:

1. -78,2:(-34) To solve this expression, we need to perform division.

-78.2 / (-34) = 2.3

Therefore, the result is 2.3.

2. 8,4:0,07 Again, this expression involves division.

8.4 / 0.07 = 120

So, the result is 120.

3. 1целая 8/27:(-1целая 5/9) This expression represents a division between mixed numbers.

First, we need to convert the mixed numbers into improper fractions:

1целая = 1 + 8/27 = 35/27 -1целая = -1 + 5/9 = -14/9

Now, we can perform the division:

(35/27) / (-14/9)

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction:

(35/27) * (-9/14)

Simplifying the expression:

= (35 * -9) / (27 * 14) = -315 / 378 = -5/6

Therefore, the result is -5/6.