Express the following in the form p/q, where p and q are integers and
(i) (ii)
(iii)
(i) 0.͞6 = 0.666…
Let x = 0.666666…
Multiplying both sides by 10
10x = 6.666
10x = 6 + x
9x = 6
x = 2/3
(ii) 0.47͞ = 0.4777…
= 4/10 + 0.777/10
Let x = 0.777…
Multiplying both sides by 10
10x = 7.777…
10x = 7 + x
x = 7/9
+ = +
= 43/90
(iii) 0.0͞0͞1 = 0.001001…
Let x = 0.001001…
Multiplying both sides by 1000
1000x = 1.001001…
1000x = 1 + x
999x = 1
x = 1/999