(1-4/9 : 1/3 - 1/4 )
4/9:1/3=4/9×3/1=4/3
3/3-4/3= -1/3
-1/3-1/4=-4/12-3/12= -7/12
(5/7 - 2/3) :(4/9-5/12)
5/7-2/3=15/21-10/21=5/21
4/9-5/12=16/36-15/36=1/36
5/21×36/1=60/7=8 4/7
Поделитесь своими знаниями, ответьте на вопрос:
(1-4/9):(1/3-1/4) , (5/7-2/3)÷(4/9-5/12)
(1-4/9 : 1/3 - 1/4 )
4/9:1/3=4/9×3/1=4/3
3/3-4/3= -1/3
-1/3-1/4=-4/12-3/12= -7/12
(5/7 - 2/3) :(4/9-5/12)
5/7-2/3=15/21-10/21=5/21
4/9-5/12=16/36-15/36=1/36
5/21×36/1=60/7=8 4/7