Question

В одной коробке 1/4кг. конфет а в другой -на 1/5 кг. больше. Сколько конфет в двух коробках? выразите ответ в граииах помогите пожалуйста

Answer 1

1/5+1/4=4/20+5/20=9/20-первая коробка
1/5+9/20=4/20+9/20=13/20-во всех коробках

Answer 2

Problem Analysis

We are given two boxes of candy. One box weighs 1/4 kg, and the other box weighs 1/5 kg more than the first box. We need to determine the total weight of the candy in both boxes.

Solution

Let's start by assigning variables to the weights of the two boxes: - Let x be the weight of the candy in the first box (in kg). - Since the second box weighs 1/5 kg more than the first box, the weight of the candy in the second box is x + 1/5 kg.

To find the total weight of the candy in both boxes, we add the weights of the two boxes: Total weight = x + (x + 1/5)

To simplify the equation, we can combine like terms: Total weight = 2x + 1/5

Now, we need to find the value of x that satisfies the equation. Let's solve for x:

2x + 1/5 = 1/4

To isolate x, we can subtract 1/5 from both sides of the equation: 2x = 1/4 - 1/5

To find a common denominator, we multiply 1/4 by 5/5 and 1/5 by 4/4: 2x = 5/20 - 4/20

Simplifying the right side of the equation: 2x = 1/20

Finally, we divide both sides of the equation by 2 to solve for x: x = 1/40

Now that we have the value of x, we can substitute it back into the equation for the total weight to find the answer: Total weight = 2(1/40) + 1/5

Simplifying the equation: Total weight = 1/20 + 1/5

To add the fractions, we need a common denominator, which is 20: Total weight = 1/20 + 4/20

Combining the fractions: Total weight = 5/20

Simplifying the fraction: Total weight = 1/4

Therefore, the total weight of the candy in both boxes is 1/4 kg.

Answer

The total weight of the candy in the two boxes is 1/4 kg.