Các câu hỏi tương tự
rut gon phan so sau
\(\frac{2^{13}+2^5}{2^{10}+2^2}\)
Cho phan so A= \(\frac{1+3+5+...+19}{21+23+25+...+39}\)
a) Rut gon phan so A
b) Hay xoa 1 so hang o tu va mau de duoc 1 phan so moi bang phan so A
rut gon phan so 2^10.3^10-2^10.3^9 /2^9.3^10
rut gon phan so
(10^2012)+2/3
(10^2003)+8/9
tong cua tu so va mau so cua mot phan so la 4812 sau khi rut gon phan so do ta duoc phan so 5/7 hay tim phan so chua rut gon
rut gon phan so sau
\(\frac{3.13-13.18}{15.40-80}\)
rut gon cac phan so sau
\(\frac{18.2+9}{27}\)
Khong dung may tinh bo tui .Rut gon roi quy dong cac phan so sau
a)\(\frac{17}{20},\frac{13}{15}va\frac{41}{60}\)
b)\(\frac{25}{75},\frac{17}{34}va\frac{121}{132}\)
Rut gon phan so sau
\(\frac{9^9.225^5.8^7}{18^{12}.625^3.24^3}\)