Question

compare e escreva < > ou =: 4\5 < > = 81% , 12\25 < > = 45%, 3\5 < > =65%, 7\20 < > = 35%

Answer 1

Explicação passo-a-passo:

4\5 = 81%

$\frac{4}{5} = \frac{80}{100} \frac{ \div 20}{ \div 20} = \frac{4}{5}$

12\25 > 45%

$\frac{12}{25} = \frac{45}{100} \frac{ \div 5}{\div 5} = \frac{9}{20}$

$\frac{12}{25} \: e \: \frac{9}{20} \\ \frac{48}{100} > \frac{45}{100}$

3\5 < 65%

$\frac{3}{5} \frac{ \times 20}{ \times 20} = \frac{60}{100} < \frac{65}{100}$

7\20 = 35%

$\frac{7}{20} \frac{ \times 5}{ \times 5} = \frac{35}{100} = \frac{35}{100}$