Question

Scrieți sub formă de de fracție numerele:
a) 0,16;-3,14;0,(8);-5,(7);0,3(5);8,21(6);-4,97(35)

Answer 1

$16 = \frac{16}{100} \\ \\ - 3.14 = - \frac{ 314}{100} \\ \\ 0.(8) = \frac{8}{9} \\ \\ - 5.(7) = \frac{ - 57 - 5}{9} = - \frac{52}{9} \\ \\ 0.3(5) = \frac{35 - 3}{90} = \frac{3}{90} \\ \\ 8.21(6) = \frac{8216 - 821}{900} = \frac{7395}{900} \\ \\ - 4.97(35) = \frac{ - 49735 - 497}{9900} = - \frac{49238}{9900}$

Answer 2

0,16=16/100

-3,14=-314/100

0,(8)=8/9

-5.(7)=-5 7/9

0,3(5)=35-3/90=32/90

8,21(6)=8 195/900

-4,97(35)= -4 9735-97/9900=-4 9638/9900