Ta có:
\(\frac{7.9+14.27+21.36}{21.27+42.81+63.108}\)
\(=\frac{7.9+14.27+21.36}{7.3.9.3+14.3.27.3+21.3.36.3}\)
\(=\frac{7.9+14.27+21.36}{\left(.9+14.27+21.36\right).3.3}\)
\(=\frac{7.9+14.27+21.36}{\left(7.9+14.27+21.36\right).9}\)
\(=\frac{1}{9}\)
Rút gọn phân số :
A = \(\frac{7.9+14.27+21.36}{21.27+42.81+63.108}\)
Rút gọn: A = 7.9 + 14.27 + 21.36 / 21.27 + 42.81 + 63.108
Rút gọn phân số: \(\frac{7.9+14.27+21.36}{21.27+42.81+63.108}\)
1)Rút gọn: A=7.9+14.27-21.36 / 21.27+42.81+63.108
rút gọn:
\(A=\frac{7.9+14.27+21.36}{21.27+42.81+63.108}\)
Rút Gọn: 7.9+14.27+21.36
21.27+42.81+63.108
rút gon \(A=\frac{7.9+14.27+21.36}{21.27+42.81+63.108}\)
CẢM ƠN !
So sánh:\(M=\frac{7.9+14.27+21.36}{21.27+42.81+63.108}và M=\frac{37}{333}\)
rút gọn 7.9+14.27+11.36/21.27+42.81+63.108
