3,(1)=3+0,(1)=3+1/9=27/9+1/9=28/9
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3,(1)=3+0,(1)=3+1/9=27/9+1/9=28/9
để viet so 0,0(3)duoi dang phan so ta lam nhu sau:
theo cach tren hay viet cac so thap phan sau day duoi dang phan so :
0,0(8); 0,1(2); 0,1(23)
viet so thap phan 0,1(2) va o,1(23) duoi dang phan so
1/7 viet duoi dang so thap phan la may
viet so 3.(18) duoi dang phan so toi gian ta duoc
viet cac so thap phan sau duoi dang phan so toi gian
0,2545454......
so 2,3(15) duoc viet duoi dang phan so la ....
Viet so 2,34(56) duoi dang phan so
Viet cac phan so sau duoi dang phan so:
a/ 2,(7)
b/ 1,(15)
c/ 3,1(3)
viet so 0,(5) duoi dang phan so toi gian