Question

6 20/3 ÷(−8 5/1 )+2 7/5 ​

Answer 1

Ответ:

4 73/195

Пошаговое объяснение:

1)6 20/3 : -8 5/1= -(38/3*1/13)=38/39

2)38/39+2 7/5=190/195+3 78/195=3 268/195=4 73/195

Answer 2

To solve the expression 6 20/3 ÷ (-8 5/1) + 2 7/5, you can follow these steps:

Step 1: Convert mixed numbers to improper fractions. 6 20/3 = (6 * 3 + 20) / 3 = 38/3 -8 5/1 = (-8 * 1 + 5) / 1 = -3/1 = -3

So, the expression becomes: 38/3 ÷ (-3) + 2 7/5

Step 2: Perform the division and simplify. 38/3 ÷ (-3) = (38/3) / (-3) = (38/3) * (-1/3) = -38/9

Now, the expression becomes: -38/9 + 2 7/5

Step 3: Convert 2 7/5 to an improper fraction. 2 7/5 = (2 * 5 + 7) / 5 = 17/5

Now, the expression is: -38/9 + 17/5

Step 4: Find a common denominator (which is 45 in this case) and add the fractions. To get a common denominator, you need to multiply the denominator of -38/9 by 5 and the denominator of 17/5 by 9:

-38/9 * 5/5 = -190/45 17/5 * 9/9 = 153/45

Now, the expression becomes: -190/45 + 153/45

Step 5: Add the fractions: -190/45 + 153/45 = (-190 + 153) / 45 = -37/45

So, the final result of the expression is -37/45.