Question

(3,05-2,125x3,2):5/6+ 1 1/6 решение

Answer 1

(3,05-2,125×3,2)÷5/6+1 1/6=-3,(3)

1)2,125×3,2=6,8

2)3,05-6,8=-3,75

3)-3,75÷5/6=(-375/100)÷5/6=-9/2=-4,5

4)-4,5+ (1 1/6)=-9/2+7/6=-10/3=-3,(3)

Answer 2

To solve the expression (3.05 - 2.125 * 3.2) / (5/6) + 1 1/6, follow these steps:

Step 1: Perform the calculations inside the parentheses. 3.05 - 2.125 * 3.2 = 3.05 - 6.8 (multiplying 2.125 by 3.2) = -3.75

Step 2: Divide the result by 5/6. (-3.75) / (5/6) To divide by a fraction, multiply by its reciprocal (flip it upside down): = (-3.75) * (6/5) = -22.5 / 5 = -4.5

Step 3: Add 1 1/6 to the result. -4.5 + 1 1/6 Convert 1 1/6 to an improper fraction: 1 + 1/6 = 6/6 + 1/6 = 7/6 = -4.5 + 7/6 To add fractions, find a common denominator, which is 6 in this case: = (-4.5 * 6)/6 + 7/6 = (-27 + 7)/6 = -20/6 = -10/3

The solution to the expression is -10/3, which is an improper fraction. You can also express it as a mixed number: -3 1/3.