Các câu hỏi tương tự
rut gon roi tinh: (84/144-225/60-169/65):(3/2-64/48-96/42)
rut gon roi tinh :(123.52/42.92.25-153.42/64.75)(48/84-4/3)
Bo ngoac roi rut gon:-a-(b-a-c)
rut gon roi quy dong ; 212121/ 353535 va 131313/141414
\(\frac{\frac{15}{6.16}+\frac{15}{16.26}+\frac{15}{26.36}}{\frac{33}{6.16}-\frac{63}{16.26}+\frac{93}{26.16}}\)
tinh gium minh roi rut gon luon nha
ban nao lam day du minh moi tick
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)\(\frac{25}{75},\frac{17}{34}va\frac{121}{132}\)
Tính nhanh: a.-25+36-74-49-51+125-136-26
b.53-98+216-475-153-298-125+84
c.78+99-122+489+122-199-489-178
d.(15-49+47)-(-49-53+115)
e.-(-354+149-47)+(49+153-454)
cong ca tu va mau cua phan so 15/23 cho n roi rut gon duoc phan so 2/3. tim n
2+2mu2+...+2mu500
tinh rut gon