Question

Calcule e reduza

Me ajudem Por favor!!! <3

Answer 1

Resposta:

$a) \frac{1}{5(4)} + \frac{3}{4(5)} = \frac{4}{20} + \frac{15}{20}$

$= \frac{4 + 15}{20} = \frac{19}{20}$

$b) \frac{3}{2} \times \frac{5}{7} = \frac{15}{14}$

$c) \frac{30}{3} \times \frac{2}{5} = \frac{60}{15} = 4$

$d) \frac{3}{2} \div \frac{1}{4} = \frac{3}{4} \times \frac{4}{1} = \frac{12}{4} = 3$

$e) \frac{3}{5(8)} - \frac{3}{8(5)} = \frac{24}{40} - \frac{15}{40} = \frac{9}{40}$

Espero ter te ajudado.