Q1. 0.27

By fast trick if bar at one digit then denominator will be 9 , if bar at two digit then dinominator will be 99 and if the bar at three digit then denominator will be 999 and so on.....

let x = 0.27.....

x = ²⁷ / ₉₉

x = ³ / ₁₁

Q1. 3.2

let x = 3.2.....

By fast trick if we have number befor decimal then remove the decimal point and take it as complete number i.e. 32 and subtract the number that is before decimal i.e. 3 so

= 32 - 3

= 29

Now after subtraction answer will be our numerator and denominator will be depands on bar as mention above.

x = 29 / 9

x = ²⁹ / ₉