Question

"un cuarto de un quinto"

que debe dar?

Answer 1

$\frac{1}{4} = 0.25 \\ \frac{1}{5} = 0.2$

$\red {0.25 - 0.2} = 0.05$

$0.05 = \blue{ \frac{1}{20}}$

0.05 en decimal y 1/20 en fraccion