Express 0.7 bar in the form of p/q also find the prime factorization of q when p and q are Co-prime

Express 0.7 bar in the form of p/q also find the prime factorization o

1.	Express 0.7 bar in the form of p/q also find the prime factorization of q when p and q are Co-prime
Answer» 0.7 bar means 0.77777777...Letx = 0.777......... ----(I)10x = 7.77........ ----(II)Subtract (II) from (I)\t10x - x = 7.777.... + 0.777...\t9x = 7\tx = 7/90.7 bar can be expressed as 7/9