Bilangan rasional a.0,99999 b.2,54545454
Jawaban Terkonfirmasi
Bab Bilangan Rasional
Matematika SMP Kelas VII
a] 0,99999… = a
0,9999… x 10 = 9,9999
10a – a = 9,9999…. – 0,99999
9a = 9
a = 9/9
a = 1
0,99999 = 1
b] 2,5454… = 2 + 0,545454…
0,545454…. = a
0,545454 x 100 = 54,545454….
100a – a = 54,54545 – 0,545454
99a = 54
a = 54/99
a = 6/11
2,545454…. = 2 + 6/11
= 2 6/11