a) = 17/20
b) = 34/21
c) = 8/18 = 4/9?
d) = 16/21
e) = 32/7
g) = 39/11
a) 17/20
b) 34/21
c) thiếu
d) 16/21
e) 32/7
g) 39/11
Tính
A) 9+ 24/25
B) 1/20+ 1/4+ 2/5
C) 7/12+ 4
D) 10+ 9/8
E) 1/4+ 2/25+ 9/100
F) 28/90+ 6
G) 3/7+4/9+4/7+7/11
H) 1/8+1/12+3/8+5/12
Bài 1 : Tính nhanh :
a, 2/3 + 3/4 + 4/5 + 12/9 + 28/6 + 48/15.
b, 3/5 + 4/7 + 2/8 + 10/25 + 9/21 + 28/16 ;
c , 8/7 + 7/6 + 5/8 + 10/12 + 24/28 + 6/16 ;
d, ( 1 + 1/2 ) x ( 1 + 1/3) x ( 1 + 1/4 ) x...x ( 1 + 1/175)
Bài 1:Tính
a) 11/4 - 9/8 + 15/12 b) 6/7 x 21/12 + 5/3
c) 13/18 : 5/9 -1 d) 3 + 9/4 : 3/5
bài 1
4/7+4
3+6/11
3-5/7
21/9-2
15/24+2
63/45-20/25
3/4-2/8
6/7-5/8
37/45-5/9
46/39-11/13
5/12+3/4+1/3
1/2+3/7+11/14
7/10-(1/5+1/4)
15/4-2/3-3/4
đầy đủ nhé mn, trả lời đủ em tick
a, 4/11 + 6/11 b, 28/8 x 12/6 c, 7/4 - 5/8 d, 3/5 : 3/7
2/3 + 3/4
9/4 + 3/5
5/24 + 1/4
3/15 - 5/35 18/27 - 2/6 37/12 - 3
11/9 x 3/22 7/13 x 13/7 4 x6/7
2/5 : 3/10 3/8 : 9/4 8/21 : 4/7
1+2+3+4+5+6+7+8+9+10+11+12+13+14+15+16+17+18+19+20+21+22+23+24+25+26=
