Question

Alguém pode me dizer a geratriz dessas dízimas : 1,4505050 ; 2,4909090 ; 7,5131313 ; 5,1404040

Answer 1

1,4505050
x= 1,4505050
10x = 14,505050
100x = 145,05050
1000x = 1450,5050

1000x - 10x = 1450,5050 - 14,5050
990x = 1436
x = 1436/990


2,4909090
x= 2,49090
10x = 24,9090
100x = 249,09090
1000x = 2490,9090

1000x - 10x = 2490,9090 - 24,9090
990x = 2466
x = 2466/990

7,5131313
x = 7,5131313 
10x = 75,1313131
100x = 751,31313
1000x = 7513,13133
1000x  - 10x = 7513,13131 - 75,131313
990x = 7438
x = 7438/990

5,1404040
x = 5,1404040
10x = 51,404040
100x = 514,04040
1000x = 5140,4040

1000x - 10x = 5140,4040- 51,4040
990x = 5089
x = 5089/990