Răspuns:
Explicație pas cu pas:
ababab = 100000a + 10000b + 1000a + 100b + 10a + b
= 101010a + 10101b = 10101*(10a + b) = 10101*ab
fractia devine 10101*ab/10101 = ab
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baba = 1000b + 100a + 10b + a = 1010b + 101a = 101*(10b + a) = 101*ba
fractia devine
101*ba/101 = ba
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5454/101 = 101*54/101 = 54
