Question

Scrieti sub forma de fractie numere:
a) 0,16; -3,14; 0,(8); -5,(7); 0,3(5); 8,21(6); -4,97(35);
b) -0,72; 5,36; -0,(42); -3,(18); 0,5(3); 12,3(45); -7,6(543).
..(coroana)..

Answer 1

a)16/100=4/25
-3,14=-314/100=-157/50
0,(8)=8/9
-5,(7)=-5 intregi 7/9=-52/9
0,3(5)=(35-3)/90=32/90=16/45
8,21(6)=8 intregi (216-21)/900=8 intregi 195/900=7395/900=1479/180=493/60
-4,97(35)=-4 intregi (9735-97)/9900=-4 intregi 9638/9900=-24619/4950
b)-0,72=-72/100=-18/25
5,36=536/100=134/25
-0,(42)=-42/99=-14/33
-3,(18)=-3 intregi 18/99=-3 intregi 2/11=-35/11
0,5(3)=(53-5)/90=48/90=8/15
12,3(45)=12 intregi (345-3)/990=12 intregi 342/990=12 intregi 57/110
-7,6(543)=-7 intregi (6543-6)/9990=-7 intregi 6537/9990=-7 intregi 2179/3330=-25489/3330