Question

Номер 616 выполни действия 1) 3/8*4/5÷9/10;2) 6/7÷3/5*1/2/5;3)2/2/11*1/3/8÷3/4;4)11/23*3/2/7÷5/1/2;5)3/5*(2/2/3÷3/1/5);6)1/1/8*(9/1/3÷1/3/4).​

Answer 1

Ответ:

1)3/8*4/5:9/10=3/10* 10/9 = 3/9 = 1/3

2) 6/7:3/5*1 2/5 = 6/7*5/3 *7/5 =  2

3)2 2/11*1 3/8:3/4 = 24/11*11/8 * 4/3 = 4

4)11/23*3 2/7:5 1/2 = 11/23*23/7 : 11/2 = 11/23*23/7*2/11=2/7

5)3/5*(2 2/3:3 1/5)=3/5*(8/3:16/5)=3/5*8/3*5/16=1/2

6)1 1/8*(9 1/3:1 3/4)= 9/8*(28/3:7/4)= 9/8*28/3*4/7= 6

Answer 2

Давайте посчитаем эти математические выражения:

1. (3/8) * (4/5) ÷ (9/10) = (3/8) * (4/5) * (10/9) = (3/2) * (2/9) = 1/3

2. (6/7) ÷ (3/5) * (1/2) / (5/1/2) = (6/7) * (5/3) * (2/1) / (5/2) = (6/7) * (5/3) * (2/1) * (2/5) = 4/7

3. (2/2/11) * (1/3/8) ÷ (3/4) = (2/22) * (8/3) ÷ (3/4) = (1/11) * (8/3) * (4/3) = 32/99

4. (11/23) * (3/2/7) ÷ (5/1/2) = (11/23) * (7/3) ÷ (5/1/2) = (77/69) / (10/5) = (77/69) / (2) = 77/138

5. (3/5) * ((2/2/3) ÷ (3/1/5)) = (3/5) * ((1/1/3) / (15/1)) = (3/5) * (3/15) = 1/5

6. (1/1/8) * ((9/1/3) ÷ (1/3/4)) = (1/8) * ((27/1/4) ÷ (1/3/4)) = (1/8) * (27/3/4) = (1/8) * (27/3/4) = (1/8) * (27/3/4) = (1/8) * (27/3/4) = 27/8

Итак, результаты вычислений:

1. 1/3
2. 4/7
3. 32/99
4. 77/138
5. 1/5
6. 27/8