2,34(56) = 2 + 0,34(56) = 2,34 + 0,00(01) * 56 = 2,34 + 56 * 0,01 * 0,(01) = 2,34 + 56 * \(\frac{1}{100}\) * \(\frac{1}{99}\) = 2,34 + \(\frac{56}{9900}\)= \(\frac{23222}{9900}\)= \(\frac{11611}{4950}\)
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
so 2,3(15) duoc viet duoi dang phan so la ....
viet cac so thap phan sau duoi dang phan so toi gian
0,2545454......
viet so 0,(5) duoi dang phan so toi gian
viet so 0.(5) duoi dang phan so toi gian la
viet 3.(1) duoi dang phan so
so 2,(8) duoc viet duoi dang phan so
viet so 2,(18) duoi dang phan so toi gian ta duoc
