Question

1),2) , minitest
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Answer 1

Răspuns:

Salutare!

1.Efectuaţi calculele:

$a)4:\frac{8}{3} = \frac{4}{1} :\frac{8}{3} =\frac{4}{1} *\frac{3}{8} =\frac{3}{2}$

$b)\frac{18}{7} :9=\frac{18}{7} :\frac{9}{1} =\frac{18}{7} *\frac{9}{1} =\frac{2}{7}$

$c)\frac{2}{7} :\frac{5}{3} = \frac{2}{7} *\frac{3}{5} =\frac{6}{35}$

2.Aduceţi la forma ireductibila:

$a)\frac{18}{56} :\frac{27}{35} =\frac{9}{28} *\frac{35}{27} =\frac{1}{4}*\frac{5}{3}=\frac{5}{12}$

[tex]b)\frac{12}{125} :\frac{9}{25} =\frac{12}{125} *\frac{25}{9} =\frac{4}{5}*\frac{1}{3} =\frac{4}{15} \\ [/tex]

$c)4\frac{2}{7} :\frac{15}{49} =\frac{30}{7} *\frac{49}{15}=2*7=14$

Succes!