Convert the fractions to a common denominator: ( frac{3}{5} = frac{6}{10} ) and ( frac{4}{5} = frac{8}{10} )
Choose any fraction with denominator 10 and numerator between 6 and 8
Example: ( frac{7}{10} )
More examples: ( frac{61}{100}, frac{62}{100}, frac{63}{100}, frac{64}{100}, frac{65}{100}, frac{66}{100}, frac{67}{100}, frac{68}{100}, frac{69}{100} )
In general, there are infinitely many rational numbers between ( frac{3}{5} ) and ( frac{4}{5} )