Question

Помогите
(3 56-26)+4
2 17+(47+1 27)
6 25-(1 35-15)
(3 78+18)-2 58
79+(1 29-59)
(4 25+45)+1 45
6 14-(3 24+1 14)
(5-2 38)-78
Помогите !!!Срочно

Answer 1

(3 56-26)+4 = 3 3/6 + 4=
Сокращаем 3/6 на 3
3 1/2+ 4= 7 1/2= 7,5


2 17+(47+1 27)=2 1/7+ 1 6/7= 3 7/7= 4


6 25-(1 35-15)= 6 2/5- 1 2/5= 5


(3 78+18)-2 58= 3 8/8- 2 5/8= 1 3/8


79+(1 29-59)= 7/9+ 1 2/9 - 5/9=
(7/9- 5/9)+ 1 2/9= 2/9+ 1 2/9= 1 4/9


(4 25+45)+1 45= 4 6/5+ 1 4/5=
5 10/5= 7


6 14-(3 24+1 14) = 6 1/4 - 3 2/4- 1 1/4=
(6 1/4- 1 1/4) - 3 2/4= 5 - 3 2/4=
4 4/4- 3 2/4= 1 2/4= 1 1/2 = 1,5


(5-2 38)-78= 5 - (2 3/8+ 7/8)=
5- 2 10/8= 5 -3 2/8= 5 - 3 1/4=
4 4/4- 3 1/4= 1 3/4 = 1,75