Question

alguém me ajuda nessa questão de matematica

Answer 1

4-
 naturais +7 0 12
inteiros- -23 -8
racionais- 3/8 14/5 o,5 0,555...
5-
14/5=1,8 letra C
4/3=1,33 letra A
-7/10=0,7 letra G
-5/4= 1,25
6-
7/8=0,875
3/4=0,75
7/5=1,4
1 2/3=1+0,666...=1,666
7-
0,333...
x=o,333...
x=3,333...
10x=3,333...
10x=3+x
10x-x=3
9x=3
x=3/9=1/9
B) 0,1666...
x=0,1666...
10x=1,666...
100x=16,666
100x=16,666...-10x=1,666...=90x=15 x=15/90=1/6
C)0,242424...
10X=2,42424...
100X=24,242424...
100X=24,242424...-X=0,242424=99x=24 x=24/99=8/33
D)0,125777...
X=0,125777...
10X=1,25777...
100X=12,5777...
1000X=125777...
10000X=125,777...
10000X=125777...-1000X=125,777=9000X=1132X=1132/9000=566/4500=283/2250
8-0,25<1/2<0,25<o,5<6/10<4/5