Question

1*дробь*b(a-b) *минус* 1*дробь*a(a-b)

Answer 1

1/б(а-б) - 1/а(а-б), я так понимаю

это тоже самое, что

а/аб(а-б) - б/аб(а-б) = а-б/аб(а-б) = 1/аб

Answer 2

To simplify the given expression, let's first rewrite it in a more readable format:

1. The first term: 1 * (a - b) / b
2. The second term: -1 * (a - b) / a

Now, let's combine the two terms:

(1 * (a - b) / b) - (1 * (a - b) / a)

Next, let's find a common denominator for the fractions, which is the product of b and a:

Common denominator = b * a

Now, we can rewrite the expression with the common denominator:

((a - b) * a - (a - b) * b) / (b * a)

Next, distribute the terms:

(a^2 - ab - ab + b^2) / (b * a)

Combine like terms:

(a^2 - 2ab + b^2) / (b * a)

The expression is now simplified to:

(a^2 - 2ab + b^2) / (b * a)