Răspuns:
Explicație pas cu pas:
0,(3) = 3/9 = 1/3
1,(3) = (13 - 1)/9 = 12/9
1 7/9 = 16/9
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1/3 + 12/9 : 16/9 = 1/3 + 12/9*9/16 = 1/3 + 12/16 = 1/3 + 3/4 = 4/12 + 9/12 = 13/12
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1 + 1/12 = 12/12 + 1/12 = 13/12
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13/12 : 13/12 = 1