Question

8 1/3 =*3,5 *3/25 * 6.25 : 1/5 : 1/16 7,2* 7/12 *2.7 * 2 22/25 :2 4/5 : 1/125 ПО ДЕЙСТВИЯМ

Answer 1

Ответ:

смогла решить только первый, знаки не правильно написал, ничего не понятно, если, что напиши в комментариях пример

× - умножить

÷ - поделить

такими знаками.

Answer 2

To solve the given expression using the given operations, let's break it down step by step:

1. 8 1/3 = 25/3 (since 8 can be written as 24/3)
2. *3,5 = 25/3 * 3.5 = 87.5/3
3. *3/25 = (87.5/3) * (3/25) = 87.5/25
4. *6.25 = (87.5/25) * 6.25 = 2187.5/100
5. : 1/5 = (2187.5/100) / (1/5) = (2187.5/100) * (5/1) = 43750/100
6. : 1/16 = (43750/100) / (1/16) = (43750/100) * (16/1) = 700,000

Therefore, 8 1/3 * 3,5 * 3/25 * 6.25 : 1/5 : 1/16 = 700,000.

Now, let's solve the second expression:

1. 7.2 * 7/12 = 7.2 * (7/12) = 50.4/12
2. *2.7 = (50.4/12) * 2.7 = 136.08/12
3. *2 22/25 = (136.08/12) * (2 22/25) Convert 2 to an improper fraction: 2 = 50/25 (136.08/12) * (50/25 + 22/25) (136.08/12) * (72/25) = (136.08 * 72) / (12 * 25) = 9790.56/300
4. :2 = (9790.56/300) / 2 = (9790.56/300) * (1/2) = 9790.56/600
5. 4/5 = 4/5
6. :1/125 = (4/5) / (1/125) = (4/5) * (125/1) = 500/5

Therefore, 7.2 * 7/12 * 2.7 * 2 22/25 : 2 4/5 : 1/125 = (9790.56/600) / (500/5) = (9790.56/600) * (5/500) = 0.1631752.