I rly need help plz What is the ratio of the smaller circle's area to the larger circle's area?

Give your answer in fully simplified form. It should look like "x:y", where x and y are replaced by integers.
[asy]
size(4cm);
pair o=(0,0); pair x=(0.9,-0.4);
draw(Circle(o, sqrt(0.97)));
draw(Circle((o+x)/2,sqrt(0.97)/2));
dot(o); dot(x); dot(-x);
draw(-x--x);
[/asy]

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