Question

1.Impartiti la 100 numerele 213.5 0.018 4513.2
2.Transformati in fracti zecimale finita folosind simplificarea 2supra 20 si 15 supra 5la 2 ori 6
3.transformati in fcati 1,(4) si 3.03(14)
4.transformati in fracti zecimala periodica 13supra 9 si 137supra 45
5.0.6*1 7supra18

Answer 1

1.
213,5:100=2,135
0,018:100=0,00018
4513,2:100=45,132

2.
2/20=1/10=0,1
(15/5)²·6=9·6=54

3.
1,(4)=1 intreg si 4/9=13/9
3,03(14)=3 intregi (314-3)/9900=3 intregi 311/9900=(9900x3+311)/9900=30011/9900

4.
13/9=1,(4)
137/45=3,0(4)

5.
1 intreg 7/18=(1x18+7)/18=25/18
0,6=6/10=3/5
3/5·25/18=5/6

Answer 2

1. 213,5 :100 = 2,135
0,018 :100=0,00018
4513,2 :100= 45,132

2. $\frac{2}{20} = \frac{1}{10}$
[tex] \frac{15}{5} = \frac{3}{1} = 3 [/tex]

3. 1,(4)= $1 \frac{4}{9} = \frac{1*9+4}{9} = \frac{9+4}{9}= \frac{13}{9}$
3,03(14)=$3 \frac{314-3}{9900} =3 \frac{311}{9900} = \frac{3*9900+311}{9900} = \frac{29700+311}{9900} = \frac{30011}{9900}$