Question

Обчисліть:

1) 2− 8/5=

2) 4− 9/11−27/11=

3) 2− 16/17−18/17=

4) 3− 21/19− 16/19=

5) 2−(26/27+ 24/27)=

6) 2−(24/25−1/25)=



даю 20 балов

Answer 1

Ответ:

1) 10/5-8/5=2/5

2)44/11-9/11-27/11=8/11

3)34/17-16/17-18/17=0/17

4)38/19-21/19-16/19=1/19

5)54/27-(26/27+24/27)=4/27

6)50/25-(24/25-1/25)=27/25=1целая 2/25

Пошаговое объяснение:

Сначала мы преобразовываем целые части в дробные знаменатель будет такой как в других дробях

Answer 2

Ответ:

1) 2 - 8/5 = 2/5 = 0.4
2) 4 − 9/11 − 27/11 = 8/11 = 0.73
3) 2 − 16/17 − 18/17 = 0
4) 3 − 21/19 − 16/19 = 20/19 = 1(1/19) = 1.05
5) 2 − (26/27 + 24/27) = 4/27 = 0.15
6) 2 − (24/25 − 1/25) = 27/25 = 1 (2/25) = 1.08

Объяснение:

1) 2 - 8/5 = (2*5)/5 - 8/5 = 10/5 - 8/5 = (10-8)/5 = 2/5 = 0.4

2) 4 - 9/11 = (4*11)/11 - 9/11 = 44/11 - 9/11 = (44-9)/11 = 35/11
35/11 - 27/11 = (35-27)/11 = 8/11 = 0.727

3) 2 - 16/17 = (2*17)/17 - 16/17 = (34-16)/17 = 18/17
18/17 - 18/17 = (18-18)/17 = 0

4) 3 − 21/19 = (3*19)/19 - 21/19 = 57/19 - 21/19 = (57-21)/19 = 36/19
36/19 - 16/19 = (36-16)/19 = 20/19 = 1(1/19) = 1.05

5) 26/27 + 24/27 = (26+24)/27 = 50/27 = (1 * 27 + 23)/27 = 1 (23/27)
2 - 1 (23/27) = 2 - 1 - 23/27 = 1 - 23/27 = (1*27)/27 - 23/27 = 27/27 - 23/27 = (27-23)/27 = 4/27 = 0.15

6) 24/25 - 1/25 = (24-1)/25 = 23/25
2 - 23/25 = (2*25)/25 - 23/25 = 50/25 - 23/25 = (50-23)/25 = 27/25 = (1 * 25 + 2)/25 = 1 (2/25) = 1.08