\(\dfrac{7}{5}+\dfrac{5}{11}=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{102}{55}\)
\(\dfrac{7}{5}+\dfrac{5}{11}=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{77+25}{55}=\dfrac{102}{55}\)
\(=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{102}{55}\)
\(\dfrac{7}{5}+\dfrac{5}{11}=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{102}{55}\)
\(\dfrac{7}{5}+\dfrac{5}{11}=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{77+25}{55}=\dfrac{102}{55}\)
\(=\dfrac{77}{55}+\dfrac{25}{55}=\dfrac{102}{55}\)
\(\dfrac{5}{7}\)x\(\dfrac{5 }{11}\)\(+\dfrac{5}{7}\)\(\text{x}\dfrac{2}{11}\)\(-\dfrac{5}{7}\)\(\text{x}\dfrac{14}{11}\)
5/7*12/11+9/7*2/11-5/7*14/11
tính
a , 5/7 * 12/11 + 9/7 * 2/11 - 5/7 * 14/11
3 x ( 1/7 + 1/3 - 3/14 ) : 11/14
( 8/5 + 11/5 ) x 11/10 + ( 17/10 - 4/5) : 3/7
Tính nhanh:
2/3 + 2/5 - 2/9 / 7/3 +7/5 - 7/9
+ 5/9 + 5/11- 5/13 / 7/9 + 7/11 - 7/13
3/7 x 11/5 + 4/7 x 11/5
A} 8x 4 x125 x25
B : 2x 178x 5
bài 2: a 5/7+ 7/13 + 9/13 + 6/5+ 9/7+ 9/5
B: 1/11+ 2/11+.......+ 10/11
A) 2/3 - ( 1/6 + 1/8 )
B) 5/7 * 14/11 * 5/7 * 2/11 * 5/11 * 5/7
C) 4/7 : ( 5/4 - 2/3 ) * 7/8
D) 10/1*3 + 10/3*5 + 10/5*7 + 10/7*9 + 10/9*11
Mong các ban trả lời hộ mình bạn nào trả lời đầu tiên mình sẽ tích cho bạn đó nha
(6:3/5-7/6+6/7):(21/5*10/11+57/11)=?
4/9 và 5/11 ,2/3 và 11/12, 7/18 và 7/24, 12/13 và 1010 phần 1313, 2/5 và 22/5 5,6/7 và 7/6