Các câu hỏi tương tự
a) 1/2 - 5/6 + 11/33 - 35/40
b) 2/3 . 1 3/4 - 8/9 - 17/51 - 1/5
c) 1/2 . 2 - 2 5/7 + 6/4 - 10/15
d) 1/6 . 1/11 + 4/11 . ( -1/6) + 8/11 . 1/6 + 1/6 . 6/11
e) -17 . (-23) + (-53) . 17 +17 . 14 + 17 .(-24)
f) -19,218 + (-82) .19 - 533 . 19 + (-19) . 167
g) 2/5 + 3/8 - 11/44 + 9/16
h) 4/10 - 1 5/6 . 2 + 7/8 -1/9
i ) 3. 1/5 - 2/8 - 12/36 + 15/9
k) 6/8 . 3 1/2 + 4 2/3 - 11/55 + 17/51
l ) 1/3 . 3 1/2 - 4 2/5 - 26/78 + 17/51
Đọc tiếp
a) 1/2 - 5/6 + 11/33 - 35/40
b) 2/3 . 1 3/4 - 8/9 - 17/51 - 1/5
c) 1/2 . 2 - 2 5/7 + 6/4 - 10/15
d) 1/6 . 1/11 + 4/11 . ( -1/6) + 8/11 . 1/6 + 1/6 . 6/11
e) -17 . (-23) + (-53) . 17 +17 . 14 + 17 .(-24)
f) -19,218 + (-82) .19 - 533 . 19 + (-19) . 167
g) 2/5 + 3/8 - 11/44 + 9/16
h) 4/10 - 1 5/6 . 2 + 7/8 -1/9
i ) 3. 1/5 - 2/8 - 12/36 + 15/9
k) 6/8 . 3 1/2 + 4 2/3 - 11/55 + 17/51
l ) 1/3 . 3 1/2 - 4 2/5 - 26/78 + 17/51
d] D=6/3*5+6/5*7+...+6/97*99
e] E=1/2*5+1/5*8+1/8*11+1/17*20
g] G=5/2*1+4/1*11+3/11*2+1/2*15+13/15*4
a)-3/5.5/7+3/-5.3/7+3/5.-6/7
b)3/13:-11/-6+-3/13:11/-5-2/13
c)1/2.(x+2)+3/8=7/16
d)1/3x+2/5(x+1)=0
-1/3+5/2x=1/6:(-2/9)
A= ( 6 : 3/5 - 1 1/6 x 6/7 ) : ( 4 1/5 x 10/11 + 5 2/11 )
B= ( 1 - 1/2 ) x ( 1- 1/4 ) x ... x ( 1 - 1/2003 ) x ( 1 - 1/2004 )
C= 5 9/10 : 3/2 - ( 2 1/3 x 4 1/2 - 2 x 2 1/3 ) : 7/4
Bài 1 Tìm x,biết
x.3/5=2/3
x.7/17=17/8
3/4 chia x=-7/12
3/8 - 1/6.x=1/4
1/3+1/2 chia x=-4
Bài 2 Tính
-6/11 chia [3/5 . 4/11]
7/12 + 5/12 chia 6 -11/36
[4/5 + 1/2] chia [3/13 - 8/13]
[2/3 - 1/4 + 5/11] chia [5/12 + 1 -7/11]
*Dấu . là dấu nhân nha mn*
1. thực hiện phép tính
a.2/3 - 11/5 = 2/3 x13/5
b. (3/18 -8/13) : (4/5 +1/2)
c. 11/6 - 6/7 +1/6 + 1/3 + -8/7
Tính giá trị biểu thứa
A=(6÷3/5-1 1/6×6/7)÷(4 1/5×10/11+5 2/11)
B=5 9/10÷3/2-(2 1/3×4 1/2-2×2 1/3)÷7/4
Điền dấu thích hợp (>,<,=) vào chỗ trống.
a,\(\dfrac{-6}{11}+\dfrac{5}{-11}....--1\) b.\(\dfrac{-5}{16}+\dfrac{-3}{16}...\dfrac{-1}{3}\)
c,\(\dfrac{2}{5}...\dfrac{3}{4}+\dfrac{-1}{6}\) d,\(\dfrac{5}{6}+\dfrac{-2}{3}...\dfrac{1}{12}+\dfrac{-4}{5}\)
Giúp mk nha :>>. Mk cảm ơn.
11 3/4 - ( 6 5/6 - 4 1/2 ) + 1 2/3
( vd 11 3/4 có nghĩa là 11 và 3/4 nhé ! )