Question

ПАЦАНЫ ХЕЛПАЙТЕ!!! ДАМ 70 БАЛОВ!!! В примере с дробями некоторые двузначные натуральные числа заменили буквами A и B. A−7 4 ------- + ------ = 1 A B Какое наименьшее значение может принимать A? Какое наибольшее значение может принимать B?

Answer 1

Домножай обе части на общий знаменатель

Answer 2

Ответ:

а может принимать 4

б может принимать 7

Пошаговое объяснение:

Задача для 2 класса

Answer 3

Problem Analysis

In this problem, we are given an equation involving two-digit natural numbers represented by letters A and B. We need to find the smallest possible value for A and the largest possible value for B that satisfy the equation.

Solution

Let's analyze the equation step by step:

A - 7 4 ------- ------ = 1 A + B

From the equation, we can see that the tens digit of A minus 7 should be equal to 1. This means that the tens digit of A should be 8. Since A is a two-digit number, the smallest possible value for A is 80.

Now, let's consider the units digit. We know that A + B should be equal to 1. Since the tens digit of A is 8, the units digit of A should be 1, in order to satisfy the equation. Therefore, the smallest possible value for A is 81.

Next, let's find the largest possible value for B. Since A + B should be equal to 1, and we have already determined that the units digit of A is 1, the units digit of B should be 0, in order to satisfy the equation. Therefore, the largest possible value for B is 0.

To summarize: - The smallest possible value for A is 81. - The largest possible value for B is 0.

Please let me know if you need any further assistance!