Các câu hỏi tương tự
bài 1:
1/4 + 2/3 2/7 + 2/3 2/5 + 1/3 2/3 + 1/2 1/3 + 3/5 4/5 + 1/3
1/8 + 3/4 1/36 + 5/12 1/3 + 1/6 + 1/18.
bài 2:
15/16 - 3/16 17/18 - 5/6 3/4 - 4/9 1/2 - 2/5 5/6 - 3/10 3-1/3
4/5 - 1/10 5/2 - 1 5/8 - 2/5.
Các phân số : 1/4; 3/2; 1/3 được xếp theo thứ tự từ lớn đến bé là :
a.1/3; 3/2; 1/4;
b.3/2; 1/3; 1/4;
c.1/3; 1/4; 3/2;
d.1/4; 1/3; 3/2
1/2+{1/3+2/3}+{1/4+2/4+3/4}+1/5+2/5+3/5+4/5}
1 A=1 1/2+1 1/3
2 C=2 2/3nhân5 1/4
3 B=2 2/3-1 4/7
4 D=3 1/3 chia 2 1/4
Bài 2:
a) ( 1/4 :5 x 1/3 x 1/4 ) : ( 2/3 + 1/5 :4 )
b) ( 3/4 :5 + 1/2:3/5 ) x ( 4/5 + 1/3 x2 )
1. Tính
2 - 1/4 - 1/3 =
2* 1/4 * 1/3 =
2 : 1/4 : 1/3 =
2 + 1/4 + 1/3
Tính Nhanh
a) ( 1/2 + 1/3 + 1/4 + 1/5 + 1/6 ) - ( 1/2 + 1/3 + 1/4 + 1/5 )
b) ( 2/3 + 2/4 + 2/5 + 2/6 + 2/7 ) - ( 2/4 + 2/5 + 2/6 + 2/7 + 28 )
2/5 +1
6/7 × 4
3/7 : 2
2 : 2/4
3/4 × 4 + 1/3
1/4 : 1/3 - 1/2
3/5+4/5*2/5 9/16*4/3+1/2: 3/4 1/2*1/4*1/6 1/4: 1/3-4/2
1/2+(1/3+2/3)+(1/4+2/4+3/4)+(1/2016+2/2016+3/2016+...+2015/2016)