Question

помогите срочно даю 10​

Answer 1

Ответ:

1)=1 2/3

2)= 2/3

Пошаговое объяснение:

1).

1 2/9 : 3 2/3 + 4 2/5 : (7/10 + 2 3/5) - (3/17 - 1 16/17 : 11) = 1 2/3

1) 7/10 + 2 3/5 = 7/10 + 2 6/10 = 2 13/10 = 3 3/10

2) 1 16/17 : 11 = 33/17 * 1/11 = (3*1)/(17*1) = 3/17

3) 3/17 - 3/17 = 0

4) 1 2/9 : 3 2/3 = 11/9 : 11/3 = 11/9 * 3/11 = 3/9 = 1/3

5) 4 2/5 : 3 3/10 = 22/5 : 33/10 = 22/5 * 10/33 = (2*2)/(1*3) = 4/3 = 1 1/3

6) 1/3 + 1 1/3 = 1 2/3

7) 1 2/3 - 0 = 1 2/3

2).

5/6 + 2 3/4 : 4 8/9 * 2 2/3 - 1 2/3 + (5/38 * 1 1/3 - 10/57) = 2/3

1) 5/38 * 1 1/3= 5/38 * 4/3 = (5*2)/(19*3) = 10/57

2) 10/57 - 10/57 = 0

3) 2 3/4 : 4 8/9 = 11/4 : 44/9 = 11/4 * 9/44 = (1*9)/(4*4) = 9/16

4) 9/16 * 2 2/3 = 9/16 * 8/3 = (3*1)/(2*1) = 3/2 = 1 1/2

5) 5/6 + 1 1/2 = 5/6 + 1 3/6 = 1 8/6 = 2 2/6 = 2 1/3

6) 2 1/3 - 1 2/3 = 1 4/3 - 1 2/3 = 2/3

7) 2/3 + 0 = 2/3