\(\frac{2}{3}\): \(\frac{1}{7}\)
= \(\frac{2}{3}\)x \(\frac{7}{1}\)
= \(\frac{14}{3}\)
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Các câu hỏi tương tự
2/7 : 1/4 - 1/7
7/11 x 0 + 5/9 : 1/2
( 3/7 + 1/4 ) : 3/4
4/3 x 1/2 + 7/2 : 1/4
a) 3/5 + 4/3
b) 2/3 - 1/5
c) 1/2 + 1/3 + 1/6
d) 3/5 + 4/7 + 7/5 + 3/7
e) 1/5 + 2/9 + 7/9 + 4/5 + 16/17 + 1
f) 1/3 x 2/7 + 1/3 x 5/7 + 15/9
c) 6 1/7 + 1/7 + 1/7 + 7 1/7 d) 12 1/3 : 1/4 + 3 2/3 : 1/4 e) (1 + 1/2 ) × (1 + 1/3 ) × (1 + 1/4 ) × … × (1 + 1/2020 ) f) 1 1/2 × 1 1/3 × 1 1/4 × 1 1/5 × … × 1 1/2021
Các phân số 7/7; 6/7; 3/8; 8/3; 1/2 sắp xếp theo thứ tự từ lớn đến bé :
A. 8/3; 7/7; 6/7; 1/2; 3/8 B. 3/8; 6/7; 7/7; 1/2; 8/3 C. 8/3; 3/8; 6/7; 1/2; 7/7 D. 6/7; 7/7; 1/2; 8/3; 3/8
8/9÷3/7=
8/9+2/5=
7/8-1/3=
3/10×1/6=
b.hỗn số
1 2/7+6 5/6=
5 3/4-1/5 =
6 2/9÷4 7/10=
5/3+3/2-7/6=
| 2 1/3 + 4 1/3 = / | 9 2/7 + 5 3/7 = / | 1 2/3 + 2 1/3 = / |
A=2/3*5 + 2/5*7 + 2/7*9 + 2/9*11 + 2/11*13 + 2/11*15
B=2/1*2 + 2/2*3 + ..........+2/9*10
Giup mình theo kiểu bài như dưới đây nhé :
D =4/3*7 + 4/7*11 + 4/11*15 +............. + 4/23*27
D=7/3*7 - 3/3*7 + 11/7*11 + ................. + 23/23*27
D=1/3 -1/7 +1/7 - ................. - 1/27
D= 1/2 - 1/27
D= 8/27
C,1/1*2+1/2*3+1/3*4+1/4*5
D,2/1*3+2/3*5+2/3*7+......................2/19*21
E,1/1*4+1/4*7+ 1/7*10+.........................2/100*103
Tính giá trị biểu thức sau :
A = ( 6 : 3/5 - 7/6 * 6/7 ) : ( 21/5 * 10/11 + 57/11 )
B = 59/10 : 3/2 - ( 7/3 * 9/2 - 2 * 7/3 ) : 7/4
C = ( 1 - 1/2 ) * ( 1- 1/3 ) * ( 1 - 1/4 ) * ( 1- 1/5 ) .............. ( 1 - 1/2003 ) * ( 1 - 1/2004 )
Tính
a) 4/3*7 + 4/7*11 + 4/11*15 + 4/15*19 + 4/19*23 + 4/23*27
b) 1/2*3 + 1/3*4 + 1/4*5 + 1/5*6 +1/6*7
c) 2/3*5 + 2/5*7 + 2/7*9 + 2/9*11 + 2/11*13 + 2/1*2 + 2/2*3 + 2/3*4 + 2/8*9 + 2/9*10