Question

Ajutor dau 20p+coroana
Ex 6 tot
Ex 10 numai b

Answer 1

Răspuns:

6. a)2,(5)=2 $\frac{5}{9}$

13,(7)= 13  7/9

125,(8)=125  8/9

0,(29)=29/99

4,(37)=4  37/99

125,(106)= 125 $\frac{106}{999}$

29,(471)=29 $\frac{471}{999}$=29$\frac{157}{333}$

b) 0,2(7)=$\frac{27-2}{90}$=25/90=5/18

4,6(5)=4$\frac{65-6}{90}$=4$\frac{51}{90}$=4$\frac{17}{30}$

8,23(7)=8$\frac{237-23}{900}$=8$\frac{214}{900}$=8$\frac{107}{450}$

16,14(35)=16$\frac{1435-14}{9900}$=16$\frac{1421}{9900}$

200,79(125)=200$\frac{79125-79}{99900}$=200$\frac{39523}{49950}$

10.a) 2,(4)+3,1(2)=2$\frac{4}{9}$+3$\frac{12-1}{90}$=$\frac{22}{9}$+$\frac{281}{90}$=$\frac{220+281}{90}$=501/90=167/30

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