Question

why is 11/21 closer to 1/2 than 21/45

Answer 1

Bro , take the lcm

I hope that you can at least take the lcm yourself.

Answer 2

Answer:

11/21=0.52

1/2=0.50

and 21/45=0.46

so 0.52 is nearer to 0.50 than 0.46