Question

express 2.5 ( bar on 5 )in p/q form

Answer 1

Answer:

23/9 is the answer

Step-by-step explanation:

Let x = 2.5(bar)

or x = 2.555..... - (1)

Now , multiply both side of equation (1) by 10

Now , multiply both side of equation (1) by 10 (because bar is on 1 number only)

so, now we get ,

10x = 25.55555.... - (2)

Now, subtract equation (1) from (2)

so, now we get,

=》9x = 23

=》x = 23/9

so, x = 23/9