Question

30÷(17 16/19-5 16/19)+(7 3/5-4 43)÷7​

Answer 1

Пошаговое объяснение:

1) 17 16/19 - 5 16/19 = 12

2) 7 3/5 - 4 4/5 = 6 8/5 - 4 4/5 = 2 4/5

3) 30 : 12 = 2,5

4) 2 4/5 = 14/5 = 2,8 : 7 = 0,4

5) 2,5 + 0,4 = 2,9

Answer 2

Ответ:

30÷(1200÷19)+(-428,4)÷7=30÷(1200÷19-61,2)=40÷19-61,2=-53,8

Пошаговое объяснение:

Answer 3

Let's solve the expression step by step:

Step 1: Simplify the fractions within the parentheses. 17 16/19 - 5 16/19 = (17 - 5) + (16/19 - 16/19) = 12 + 0 (The fraction terms cancel out) = 12

7 3/5 - 4 43 = (7 - 4) + (3/5 - 43) = 3 - 43 (The fraction terms cancel out) = -40

Step 2: Simplify the expression within the parentheses. 30 ÷ (12 + (-40)) = 30 ÷ (-28)

Step 3: Divide the numerator by the denominator. 30 ÷ (-28) = -30/28

Step 4: Simplify the fraction, if possible. -30/28 can be simplified to -15/14.

So, the final result of the expression is -15/14.