Question

Выполните действия - 1 1/7×(4/5+19/20)×(6 5/6+4 2/3)=​

Answer 1

Відповідь:

Покрокове пояснення:

Answer 2

1 1/7 × (4/5 + 19/20) × (6 + 5/6 + 4 + 2/3)

First, simplify the fractions inside the parentheses: 4/5 + 19/20 = (16/20 + 19/20) = 35/20 = 1 3/20 5/6 + 2/3 = (10/12 + 8/12) = 18/12 = 1 1/2

Now, substitute the simplified fractions back into the original equation: 1 1/7 × 1 3/20 × (6 + 1 1/2 + 4)

Next, add the mixed numbers inside the parentheses: 6 + 1 1/2 + 4 = 6 + 3/2 + 4 = 6 + 1 1/2 + 4 = 10 1/2

Now, substitute the sum of the mixed numbers back into the equation: 1 1/7 × 1 3/20 × 10 1/2

Now, multiply the mixed numbers: 1 1/7 = 8/7 1 3/20 = 23/20 10 1/2 = 21/2

8/7 × 23/20 × 21/2 = (8 × 23 × 21) / (7 × 20 × 2) = 3864 / 280 = 48/35

So, the final answer is 48/35.