\(\frac{5^{11}.7^{12}+5^{11}.7^{11}}{5^{12}.7^{12}+9.5^{11}.7^{11}}=\frac{5^{11}.7^{11}\left(7+1\right)}{5^{11}.7^{11}\left(5.7+9\right)}=\frac{8}{44}=\frac{2}{11}\)
\(\frac{5^{11}.7^{12}+5^{11}.7^{11}}{5^{12}.7^{12}+9.5^{11}.7^{11}}=\frac{5^{11}.7^{11}\left(7+1\right)}{5^{11}.7^{11}\left(5.7+9\right)}=\frac{8}{44}=\frac{2}{11}\)
-5/11.7/15.-11/5.-45
rút gọn:\(\frac{5^{11}.7^{12}+5^{11}-7^{10}}{5^{12}.7^{12}+9.5^{11}.7^{11}}\)
rút gọn phân số: \(\frac{5^{11}.7^{12}+5^{11}.7^{11}}{5^{12}.7^{12}+9.5^{11}.7^{11}}\)
tính giá trị biểu thức sau
E=33-11.7/12.11
Tính biểu thức sau:
\(\frac{1}{1.5}+\frac{1}{5.4}+\frac{1}{4.11}+\frac{1}{11.7}+\frac{1}{7.17}+....+\frac{1}{101.52}\)
Tính ( tính nhanh nếu có thể)
a) (1 1/4 + 3/5): -11/12 + (3/8 - 1 2/5) : -11/12
b) ( 3/8 - 1 2/5) : -11/15 + (1 1/4 + 3/5) -11/15
5/11-5/12-5/13
_____________
7/13+7/11-7/12
=?
[(3/8)-(3/10)-(3/11)-(3/12)]/(5/10-5/8-5/11-5/12
Giải đầy đủ nha
(-5/11 : 13/8 - 5/11 : 13/5) + (-1/33) (-3/2)2+ | -1/8 | - 5/12 3/5 + |-5/3| - (-1/2)+(-1/4) SOS