neu b la so vo ti thi b viet duoc duoi dang...
so 2,(8) duoc viet duoi dang phan so
viet so 2,(18) duoi dang phan so toi gian ta duoc
Viet cac so sau duoi dang phan so:
a, 2,(14) b,-2,(15)
c,-4,3(2) d,0,14(8)
Tim cac so nguyen to a, b co 1 chu so de so x bang 5 x a phan 6 x b viet duoc duoi dang:a, so thap phan huu hanb, so thap phan vo han tuan hoanso 2,3(15) duoc viet duoi dang phan so la ....
viet so 3.(18) duoi dang phan so toi gian ta duoc
so 1,2(25) duoc viet duoi dang phan so toi gian voi mau bang :
A,99
B,990
C,999
D,1000
viet 1.(5) duoi dang phan so toi gian ta duoc ket qua ?
phan so nao duoc viet duoi dang phan so huu han
A.5/12
B.3/11
C.1/14
D.15/30
