Question

find two fractions that are between 3/5 & 4/5

Answer 1

3/5=6/10=60/100 and 4/5=8/10=80/100 So, two fractions between 3/5 and 4/5 would be 65/100 and 75/100

Answer 2

$\frac{3}{5} = \frac{3\times 2}{5\times 2} = \frac{6}{10} \\\\ \frac{4}{5} = \frac{4\times 2}{5\times 2} = \frac{8}{10}$

A few fractions in between 3/5 and 4/5 is 7/10, 13/20, and 15/20.