3+ 7/2 + 7/2 + 7/2 + 7/5764 + 8 = 21,50121443
3+ 7/2 + 7/2 + 7/2 + 7/5764 + 8 = 21,50121443
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=
1+1+1+1+2+2+2+3+3+3+3+4+4+4+4+5+5+5+5+6+6+6+6+7+7+7+7+8+8+8+8+9+9+9+9+10=
Tính hợp lí:
a) 5/7 + 3/8 + 5/8 + 2/7
b) 38/7 - (24/7 + 3/4)
c) 11/3 : (4/3 x 1/2)
d) (68/7 x 7/9) : 7/68
e) 13/4 : 5/6 + 11/4 : 5/6
f) 7/8 : 8/23 + 7/28 : 8/17
28.37+37.28 :28+37
7/9 + 2/3 - 5/18 =
11/5 - 3/4 + 7/15 =
7/8 + 5/9 : 2 =
4/15 : 2/3 + 5/7 =
a) ( ( -3/5 + 4/9 ) : 2/7 - (-14/9 + 2/5 ) :2/7 ) : (23/7 x 15/2 - 23/7 x 11/2)
b) ( 8 - 9/4 + 2/7) - (-6 x -3/7 + 5/4 ) - ( 3 + 2/4 - 9/7 )
Mình cảm ơn ! :v
1+2+3+4+5+6++7+8+9+9+8+7+6+5+4+3+2+1+1+2+3+4+5++6+7+8+9=?