Question

15.712121212express in the p/q form​

Answer 1

Answer:

let x=15.712121212 -(1)

multiplying both sides with 10 in eq.(1),we get

10x=157.12121212 -(2)

Again ,multiplying both sides with 1000 in eq.(1), we get

1000x=15712.12121212 -(3)

Now, subtract eq.(2) from eq.(3) we get

1000x-10x= 15712-157

990x=15555

x=15555/990

Thus, 15.712121212=15555/990