Ответ:
Пошаговое объяснение:
1) 2+(1/(1+2/(1+1/3)))=2.4.
Начинаем снизу:
1) 1+1/3 = 1 1/3;
2) 1+(2 : (1 1/3)) = 1+2*3/4 = 1+3/2=1+1 1/2=2 1/2=2.5;
3) 1:2.5 = 0.4;
4) 2+0.4 = 2.4.
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2) (2-(1/2-1/4)/2) : (2+(1/2-1/4)/2) = 15/17.
1) 1/2-1/4 = 2/4-1/4=1/4;
2) 1/4 : 2=1/8;
3) 2-1/8 =1 7/8;
4) 2+1/8 = 2 1/8;
5) 1 7/8 : 2 1/8 = 15/8 : 17/8=15/17.
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3) 1/(2-1/(2-1/(2-3)))=7/9.
1) 2-1/3 = 1 2/3;
2) 1:1 2/3 = 1:5/3=3/5;
3) 2-3/5=1 2/5;
3) 1:1 2/5 = 1:7/5 = 5/7;
4) 2- 5/7 = 1 2/7;
5) 1:9/7 = 7/9.
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Answers & Comments
Ответ:
Пошаговое объяснение:
1) 2+(1/(1+2/(1+1/3)))=2.4.
Начинаем снизу:
1) 1+1/3 = 1 1/3;
2) 1+(2 : (1 1/3)) = 1+2*3/4 = 1+3/2=1+1 1/2=2 1/2=2.5;
3) 1:2.5 = 0.4;
4) 2+0.4 = 2.4.
-------------
2) (2-(1/2-1/4)/2) : (2+(1/2-1/4)/2) = 15/17.
1) 1/2-1/4 = 2/4-1/4=1/4;
2) 1/4 : 2=1/8;
3) 2-1/8 =1 7/8;
4) 2+1/8 = 2 1/8;
5) 1 7/8 : 2 1/8 = 15/8 : 17/8=15/17.
---------------
3) 1/(2-1/(2-1/(2-3)))=7/9.
Начинаем снизу:
1) 2-1/3 = 1 2/3;
2) 1:1 2/3 = 1:5/3=3/5;
3) 2-3/5=1 2/5;
3) 1:1 2/5 = 1:7/5 = 5/7;
4) 2- 5/7 = 1 2/7;
5) 1:9/7 = 7/9.