natural no.s between 1 and 10 are
2,3,4,5,6,7,8,9 no.of natural numbers between 1 and 10=8
Among these even no.s are 2,4,6,8
So no.of even numbers between 1 and 10 =4
there fraction of even no.s between 1 and 10
= no.of even numbers between 1 and 10 / no.of natural numbers between 1 and 10
=4/8
=1/2