1/9 = 0.1111111... 9/9= 1... Wot
0.999999999999.... is equal to 1
Yes that is correct.
0.9 repeater = 1
You illustrated why using multiples of 0.1 repeater
0.1 repeater =1/9 so 0.9 repeater =9/9 = 1
Here is another illustration.
0.3 repeater =1/3
0.6 repeater =2/3
0.9 repeater = 3/3 = 1