Question

9/17 - 5/14 * 42/68 (6 класс)

Answer 1

Ответ:

Пошаговое объяснение:

5/14 * 42/68=15/68

9/17-15/68=36/68-15/68=21/68

Answer 2

To solve the expression, follow the order of operations (PEMDAS/BODMAS):

1. Parentheses/Brackets
2. Exponents/Orders
3. Multiplication and Division (from left to right)
4. Addition and Subtraction (from left to right)

Let's apply these steps to the given expression:

9/17 - 5/14 * 42/68

Step 1: No parentheses/brackets.

Step 2: No exponents/orders.

Step 3: Perform multiplication and division from left to right.

5/14 * 42/68 = (5 * 42) / (14 * 68) = 210 / 952

Step 4: Perform addition and subtraction.

9/17 - 210 / 952 = (9 * 952 - 210 * 17) / (17 * 952) = (8568 - 3570) / 16184 = 4998 / 16184

This fraction can be simplified. Divide both the numerator and denominator by their greatest common divisor (GCD), which is 2:

4998 / 16184 = 2499 / 8092

So the simplified result of the expression is 2499 / 8092.