Question

Express 0.25(5)bar as rational number

Answer 1

Answer:

2.3/9

Step-by-step explanation:

Let x = 0.25 bar

x = 0.2555.... (1st equation)

Multiply by 10

10x = 2.5555... (2nd equation)

(2nd eq. - 1st eq.)

10x - x = 2.5555 - 0.2555

9x = 2.3

x = 2.3/9