316/49 > 323/56           ;         -214/317 < -21/36  

Đơn giản như đang giỡn :

=315.313.316.317/315.314.316.317

=313/314

hok tốt k nhé bạn .

    \(\frac{315}{316}\cdot\frac{313}{314}\cdot\frac{316}{315}\cdot\frac{317}{314}\)

= \(\frac{315\cdot313\cdot316\cdot317}{316\cdot314\cdot315\cdot314}\)

=\(\frac{1\cdot313\cdot1\cdot317}{1\cdot314\cdot1\cdot314}\)(Bước này là bước rút gọn)

= \(\frac{99221}{98596}\)

                                     #Kiều

\(\frac{315}{316}.\frac{313}{314}.\frac{316}{315}.\frac{317}{314}\)\(=\frac{315.313.316.317}{316.314.315.314}\)

Sau khi rút gọn:

\(=\frac{313.317}{314.314}\)

\(\frac{315}{316}\cdot\frac{316}{314}\cdot\frac{316}{315}\cdot\frac{317}{313}=\frac{315.316.316.317}{316.314.315.313}=\frac{1.1.316.317}{1.314.1.313}=\frac{100172}{98282}\)

Ta có : \(\frac{3}{2}\times\frac{4}{5}\times\frac{2}{3}\)

\(=\frac{3}{2}\times\frac{2}{3}\times\frac{4}{5}=1\times\frac{4}{5}\)

\(=\frac{4}{5}\)

\(\frac{4}{5}\) nhé bn

           \(\frac{19}{13}+\frac{14}{6}+\frac{1}{9}+\frac{4}{6}+\frac{7}{13}+\frac{17}{9}\)

\(=\left(\frac{19}{13}+\frac{7}{13}\right)+\left(\frac{14}{6}+\frac{4}{6}\right)+\left(\frac{1}{9}+\frac{17}{9}\right)\)

\(=\frac{26}{13}+\frac{18}{6}+\frac{18}{9}\)

\(=2+3+2\)

\(=7\)

              \(\frac{315}{316}\times\frac{313}{314}\times\frac{316}{315}\times\frac{317}{314}\)

\(=\left(\frac{315}{316}\times\frac{316}{315}\right)\times\left(\frac{313}{314}\times\frac{317}{314}\right)\)

\(=1\times1,006339\)

\(=1,006339\)

#Chúc bạn học tốt !

#k mình nhé ?

315/316*313/314*316/315*317/313

=315*313*316*317/316*314*315*313

=317/314

Tick cho mik nha

dung thi mik tick cho nhe

a,>

b,>

c,>

d,>

e,>

g,>

cac ban oi giup minh voi bai toan nay kho qua

=9-9/9

Ta có: \(4.\frac{a}{2\left(b+1\right)}=\frac{2a}{b+1}\)  và   \(\frac{2a}{b-1}\)

Ta thấy chung tử \(\Rightarrow\frac{2a}{b+1}\le\frac{2b}{b-1}\)

Dấu"=" <=> a=b=0

cac ban oi giup mk voi ♥♥♥♥ 

mai mk phai nop bai roi , nhanh nha , mk dang can gap , toi mk se lay y kien cua cac ban

hai phân số bằng nhau