Zamień ułamek okresowy na zwykły :0,(5)1,2(34)
Zapisz obliczenia .
x = 0,(5)
10x = 5,(5)
10x - x = 5,(5) - 0,(5)
9x = 5 /:9
x = ⁵/₉
0,(5) = ⁵/₉
x = 1,2(34)
10x = 12,(34)
1000x = 1234,(34)
1000x - 10x = 1234,(34) - 12,(34)
990x = 1222 /:990
x = ¹²²²/₉₉₀
x = 1²³²/₉₉₀
x = 1¹¹⁶/₄₄₅
1,2(34) = 1¹¹⁶/₄₄₅
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x = 0,(5)
10x = 5,(5)
10x - x = 5,(5) - 0,(5)
9x = 5 /:9
x = ⁵/₉
0,(5) = ⁵/₉
x = 1,2(34)
10x = 12,(34)
1000x = 1234,(34)
1000x - 10x = 1234,(34) - 12,(34)
990x = 1222 /:990
x = ¹²²²/₉₉₀
x = 1²³²/₉₉₀
x = 1¹¹⁶/₄₄₅
1,2(34) = 1¹¹⁶/₄₄₅