Question

( -50 2/5 : (-5,6)+6,2):(-1 2/5)

Answer 1

Пошаговое объяснение:

(-50 2/5:(-5,6)+6,2):(-1 2/5)= - 10 6/7

1) - 50 2/5:(-5,6)=50,4:5,6=9

2) 9+6,2=15,2

3) 15,2:(-1 2/5)= - 15 1/5:7/5= - 76/5×5/7=

= - 76/7= - 10 6/7

Answer 2

To evaluate the expression (-50 2/5 : (-5,6)+6,2):(-1 2/5), we need to follow the order of operations (also known as PEMDAS or BODMAS), which stands for Parentheses, Exponents, Multiplication and Division (from left to right), and Addition and Subtraction (from left to right).

Let's break down the expression step by step:

1. (-5,6) + 6,2 The comma (",") in the expression is not a standard mathematical notation, so I'll assume it represents a decimal point. Therefore, we have: (-5.6) + 6.2 = 0.6

2. -50 2/5 We can rewrite this mixed number as an improper fraction: -50 2/5 = -(50 + 2/5) = -((50 * 5 + 2) / 5) = -((252) / 5) = -50 2/5 = -252/5

3. (-1 2/5) Again, let's convert the mixed number to an improper fraction: (-1 2/5) = -(1 + 2/5) = -((1 * 5 + 2) / 5) = -((7) / 5) = -7/5

Now, let's substitute the values back into the expression:

((-50 2/5) : (0.6)) : (-7/5)

4. Division: (-50 2/5) : (0.6) To divide fractions, we can multiply by the reciprocal of the divisor: (-252/5) / (0.6) = (-252/5) * (5/3) = -252/3 = -84

5. Division: (-84) : (-7/5) Dividing by a negative number is the same as multiplying by its reciprocal: (-84) * (-5/7) = 420/7 = 60

Therefore, the value of the expression (-50 2/5 : (-5,6)+6,2):(-1 2/5) is 60.