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A) 2, 134444... =x
21,344444...= 10x
213,44444...=100x ⇒2134,4444...= 1000x
2134,4444...= 1000x 213,44444...=100x -
------------------= -------
1921= 900x
1921/900=x
B) 2,1343434... = x
21,343434...= 10x 2134,3434...=1000x
213,43434...=100x ⇒ 21,343434...= 10x -
2134,3434...=1000x ---------------------------------------
2113 = 990x
2113/990=x
21,344444...= 10x
213,44444...=100x ⇒2134,4444...= 1000x
2134,4444...= 1000x 213,44444...=100x -
------------------= -------
1921= 900x
1921/900=x
B) 2,1343434... = x
21,343434...= 10x 2134,3434...=1000x
213,43434...=100x ⇒ 21,343434...= 10x -
2134,3434...=1000x ---------------------------------------
2113 = 990x
2113/990=x
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