Answer:
8/20, 12/30, 16/40
Explanation:
Not sure what the "next three" means. Maybe bigger numbers?
The simplest form of 4/10 is 2/5, and that's an equivalent fraction, but maybe they don't want that.
So what if you multiplied by 2 to get 8/20?
Multiply by 3 to get 12/30.
And by 4 to get 16/40.
Those are all equivalent to 4/10.