Question

помогите пж с 762 не могу решить​

Answer 1

Ответ:

Пошаговое объяснение:

1)  Начинаем снизу:

1-1/2 = 1/2;

2+1:(1/2) = 2+1*2 = 2+2 = 4;

3-3:(4) = 3-3*1/4 = 3-3/4 = 2 1/4;

4+9:(2 1/4) = 4+9:(9/4) = 4+9*(4/9) = 4+4 = 8;

6:8 = 6/8 = 3/4 = 0.75.

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2)  2-3/4 = 1 4/4-3/4 = 1 1/4;

4-1:(1 1/4) = 4-1:(5/4) = 4-4/5 = 3 1/5;

6-4:(3 1/5) = 6-4:(16/5) = 6-4*(5/16) = 6-5/4 = 6-1 1/4 = 4 3/4;

8-19:(4 3/4) = 8-19:(19/4) 8-19*(4/19) = 8-4 = 4;

1/4 = 0.25.

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4+4/5 = 4 4/5;

5+8:(4 4/5) = 5+8:(24/5) = 5+8*(5/24) = 5+5/3 = 5 +1 2/3 = 6 2/3;

6+5:(6 2/3) = 6+5:(20/3) = 6+5*(3/20) = 6+3/4 = 6 3/4;

7+9:(6 3/4) = 7+9:(27/4) = 7+9*(4/27) = 7+(4/3) = 7+(1 1/3) = 8 1/3;

5:(8 1/3) = 5:(25/3) = 5*3/25 = 3/5 = 0.6.