zapisz w postaci ułamka
0,9(7)
1,3(14)
0,9(7)x = 0,977100x = 97,777100x - 10x = 97,777 - 9,77790x = 88/:90x = 88/90
1,3(14)x = 1,31410x = 13,1411000x = 1314,14141000x - 10x = 1314,1414 - 13,1414990x = 1301/990x = 1301/990
w załączniku
0,9(7)x = 0,977...100x = 97,777...100x - 10x = 97,777... - 9,777...
90x = 88/:90x = 88/90===============================
1,3(14)x = 1,314....10x = 13,1414...1000x = 1314,1414...1000x - 10x = 1314,1414... - 13,1414...990x = 1301/990x = 1301/990
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0,9(7)
x = 0,977
100x = 97,777
100x - 10x = 97,777 - 9,777
90x = 88/:90
x = 88/90
1,3(14)
x = 1,314
10x = 13,141
1000x = 1314,1414
1000x - 10x = 1314,1414 - 13,1414
990x = 1301/990
x = 1301/990
w załączniku
0,9(7)
x = 0,977...
100x = 97,777...
100x - 10x = 97,777... - 9,777...
90x = 88/:90
x = 88/90
===============================
1,3(14)
x = 1,314....
10x = 13,1414...
1000x = 1314,1414...
1000x - 10x = 1314,1414... - 13,1414...
990x = 1301/990
x = 1301/990