Question

4.57 (bar on 7) in the p/q form

Answer 1

Let 4.57.. = x
Then 10x = 45.7
And 100x = 457.7
Hence 100x - 10x = 457.7 - 45.7
90x = 412
So x = 412/90
Hence.. x = 4.57... = 412/90