Question

Simplificati raportul:a)2,8/3,6 cu 4;b)3,25/55 cu 2,5;c)-10,08/11,34 cu 1,8;d)15,68/25,56 cu 3,2

Answer 1

Cerinta - sa simplificam fractii

Explicație pas cu pas:

A simplifica o fractie inseamna a imparti numitorul si numaratorul la un divizor comun

$\displaystyle\frac{2.8}{3.6} =\frac{\frac{28}{10} }{\frac{36}{10} } =\frac{28}{10} :\frac{36}{10} =\frac{28}{\not10} \times \frac{\not10}{36} =\frac{28}{36} =\frac{7\times \not4}{9\times \not4} =\frac{7}{9} =0,(7)$

$\displaystyle\frac{3.25}{55} =\frac{1.3\times \not2.5}{22\times \not2.5} =\frac{1.3}{22} =0.05(90)$

$\displaystyle-\frac{10.08}{11.34} =-\frac{\not1.8 \times 5.6}{\not1.8\times 6.3} =-\frac{5.6}{6.3}=-0.(8)$

$\displaystyle\frac{15.68}{25.56} =\frac{\not3.2\times 4.9}{\not3.2\times 7.9875} =\frac{4.9}{7.9875}$