Question

Find the value of(0.424242......)-(0.353535......)

Answer 1

Put x=0.42424242.....
then 100x=42.42424242...
and 100x-x=42
=>99x=42
so x=42/99
Similarly y=35/99
we need x-y, which is
(42/99)-(35/99)=7/99=0.07070707......