Question

Плииз помогите номер решить. Очень надо,только чтоб все было понятно и раздельно: Выполнить действия,представляя числа в наиболее удобном для вычисления виде 1) 3 4/5 - 1,8 2)0,84×3/4 3)2,2 : 11/15 4) 3 9/10+1,68 5)4,2:3 1/2 6)1/5×20,08 7)5,384-4 3/20 8)1 2/3+2,5 Ребята,помогите прошу. Очень надо. Всех отблагодарю. Спасибо...)

Answer 1

34/5-1 8/10=19/5-18/10=38/10-18/10=20/10=2

1 2/3+2.5=5/3+25\10=50/30+75/30=125/30=4 5/30=4 1/6

Answer 2

Task: Perform calculations with the given numbers

To solve the given calculations, let's break them down step by step:

1) 1 + 3 * 4/5 - 1.8 To solve this expression, we need to follow the order of operations, which is parentheses, multiplication/division (from left to right), and addition/subtraction (from left to right). Let's break it down: - First, we have multiplication: 3 * 4 = 12. - Then, we have division: 12/5 = 2.4. - Next, we have addition: 1 + 2.4 = 3.4. - Finally, we have subtraction: 3.4 - 1.8 = 1.6.

Therefore, the result of the expression is 1.6.

2) 0.84 × 3/4 Again, let's follow the order of operations: - First, we have multiplication: 0.84 × 3 = 2.52. - Then, we have division: 2.52/4 = 0.63.

Therefore, the result of the expression is 0.63.

3) 2.2 ÷ 11/15 Following the order of operations: - First, we have division: 2.2 ÷ 11 = 0.2. - Then, we have division again: 0.2 ÷ 15 = 0.0133 (rounded to four decimal places).

Therefore, the result of the expression is approximately 0.0133.

4) 3 + 9/10 + 1.68 Let's solve it step by step: - First, we have addition: 3 + 0.9 = 3.9. - Then, we have addition again: 3.9 + 1.68 = 5.58.

Therefore, the result of the expression is 5.58.

5) 4.2 ÷ 3 + 1/2 Following the order of operations: - First, we have division: 4.2 ÷ 3 = 1.4. - Then, we have addition: 1.4 + 0.5 = 1.9.

Therefore, the result of the expression is 1.9.

6) 1/5 × 20.08 Let's solve it step by step: - First, we have multiplication: 1/5 × 20.08 = 4.016.

Therefore, the result of the expression is 4.016.

7) 5.384 - 4 + 3/20 Following the order of operations: - First, we have subtraction: 5.384 - 4 = 1.384. - Then, we have addition: 1.384 + 0.15 = 1.534.

Therefore, the result of the expression is 1.534.

8) 1 + 2/3 + 2.5 Let's solve it step by step: - First, we have addition: 1 + 0.67 = 1.67. - Then, we have addition again: 1.67 + 2.5 = 4.17.

Therefore, the result of the expression is 4.17.

I hope this helps! Let me know if you have any further questions.