Question

7/9×(1 2/7-3,6b)-2 1/6(1,2a-6/1b)

Answer 1

Я надеюсь что я вам помогла

Answer 2

Let's break down the expression step by step:

1. 1 2/7 - 3.6b: First, calculate the value of this part.

   • 1 2/7 can be converted to an improper fraction: (7 * 1 + 2) / 7 = 9 / 7.
   • Subtracting 3.6b, we don't have much context about "b," but assuming it's a number, this part is: 9/7 - 3.6b.

2. 7/9 × (9/7 - 3.6b): Next, we'll work inside the parentheses.

   • Multiply 7/9 by 9/7: (7 * 9) / (9 * 7) = 63 / 63 = 1.
   • Multiply 1 by the value calculated in step 1: 1 × (9/7 - 3.6b) = 9/7 - 3.6b.

3. 2 1/6 (1,2a - 6/1b): Now, let's work with the second expression.

   • 2 1/6 can be converted to an improper fraction: (6 * 2 + 1) / 6 = 13 / 6.
   • Multiply 13/6 by (1,2a - 6/1b), which is somewhat unclear due to formatting. Assuming you meant (1.2a - 6/b), the expression becomes 13/6 * (1.2a - 6/b).

To summarize the calculations:

• 7/9 × (1 2/7 - 3.6b) = 9/7 - 3.6b
• 2 1/6 (1,2a - 6/1b) = 13/6 * (1.2a - 6/b)

Please make sure to clarify the expressions if there are any typos or missing details. If "a" and "b" are variables or specific numbers, the final result would depend on their values.