Question

(2/7+(1/2)²+3/4)÷1 1/7​

Answer 1

Ответ:

9/49

Пошаговое объяснение:должно быть правельно

Answer 2

Let's break down the expression step by step:

1. First, calculate the value inside the parentheses:

   (2/7 + (1/2)^2 + 3/4)

   = (2/7 + 1/4 + 3/4)

2. Combine the fractions with a common denominator:

   = (8/28 + 7/28 + 21/28)

3. Add the fractions:

   = (8/28 + 7/28 + 21/28)

   = (36/28)

4. Simplify the fraction:

   = (9/7)

Now, we have:

(9/7) ÷ (1 1/7)

To divide by a mixed number, convert it to an improper fraction:

1 1/7 = (7/7 + 1/7) = (8/7)

Now, we can divide:

(9/7) ÷ (8/7)

When dividing fractions, you can multiply by the reciprocal of the second fraction:

(9/7) ÷ (8/7) = (9/7) * (7/8)

Now, multiply the fractions:

(9/7) * (7/8) = (9 * 7) / (7 * 8)

= 63/56

Now, you can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 7:

(63/7) / (56/7) = 9/8

So, the final result is 9/8.