Question

Cat este 4 supra 9÷10 supra 9

Answer 1

$\frac{4}{9} : \frac{10}{9} = \frac{4}{9} \times \frac{9}{10} = 4 \times \frac{1}{10} = 2 \times \frac{1}{5} = \frac{2 \times 1}{1 \times 5} = \frac{2}{5}$

Answer 2

$\frac{4}{9} \div \frac{10}{9} = \\ \frac{4}{9} \times \frac{9}{10} = \\ \frac{4 \times 9}{9 \times 10} = \\ \frac{36}{90} = \frac{4}{10} = \frac{2}{5}$