Question

Expres the following in decimal in the form of p/q.1) 0.4~

Answer 1

Answer:

0.4 bar = 4/9

Step-by-step explanation:

Given,

0.4 bar

Then,

x = 0.4 bar ..... (i)

Multiplying 10 on bith sides of equation (i), we get,

10x = 4.4 bar .... (ii)

Subtracting equation (i) from equation (ii), we get,

10x - x = 4.4 bar - 0.4 bar

=> 9x = 4

=> x = 4/9

Hence,

0.4 bar = 4/9