Question

18:(2, 3/8+1, 5/8)+2,6*1,5

Answer 1

18:(2,3/8+1,5/8)+2,6•1,5

Выполняем деление, вычисляем

18:(0,2875+0,1875)+3,9

Вычисляем сумму, преобразовываем

18:0,4575+39/10

Преобразовываем десятичную дробь в обычную

18:19/40+39/10

Умножаем на обратное значение

18•40/19+39/10

Вычисляем произведение

720/19+39/10

Складываем дроби

Ответ: 7941/190

Answer 2

It seems like you've provided a mathematical expression that needs to be evaluated. Let's break down the expression step by step:

1. 18 : (2, 3/8 + 1, 5/8) + 2
2. 6 * 1.5

Let's evaluate each part of the expression separately:

1. Inside the parentheses, we have some fractions that need to be added:

   • 3/8 + 1 = 11/8 (convert 1 to 8/8 and then add)
   • 5/8 (this remains unchanged)

   So, the expression within the parentheses simplifies to: 11/8 + 5/8 = 16/8 = 2

2. Now, we can substitute the result of the parentheses back into the original expression:

   • 18 : 2 + 2

   Dividing 18 by 2: 18 / 2 = 9 Adding 9 and 2: 9 + 2 = 11

3. Finally, let's evaluate the second part of the expression:

   • 6 * 1.5 = 9

Putting it all together: 11 + 9 = 20

So, the result of the given expression is 20.