Question

encontre quantos porcentos vale cada número

a)6/5 f)0,217
b)8/16 g)3,14
c)7/5 h)1,1234
d)1/8 i)21/42
e)0,18 j)0,734

Answer 1

$a)\\ \\ 1~inteiro=100\\ ~~~~~~~~~~~\frac{6}{5} =~~x\\ \\ x=\frac{6}{5}~.~100=\frac{600}{5} =120\\ \\ \frac{6}{5} =120~por~cento$

$b)\\ \\ \frac{8}{16} ~.~100=\frac{800}{16} =50\\ \\ \frac{8}{16} =50~por~cento$

$c)\\ \\ \frac{7}{5} ~.~100=\frac{700}{5} =140\\ \\ \frac{7}{5} =140~por~cento$

$d)\\ \\ \frac{1}{8} ~.~100=\frac{100}{8} =12,5\\ \\ \frac{1}{8} =12,5~por~cento$

$e)\\ \\ 0,18~.~100=18~por~cento$

$f)\\ \\ 0,217~.~100=21,7~por~cento$

$g)\\ \\ 3,14~.~100=314~por~cento$

$h)\\ \\ 1,1234~.~100=112,34~por~cento$

$i)\\ \\ \frac{21}{42} ~.~100=\frac{2100}{42} =50~por~cento$

$j)\\ \\ 0,734~.~100=73,4~por~cento$