\(\dfrac{8}{21}:\dfrac{4}{7}=\dfrac{8}{21}x\dfrac{7}{4}=\dfrac{56}{84};\dfrac{3}{11}:\dfrac{1}{6}=\dfrac{3}{11}x\dfrac{6}{1}=\dfrac{18}{11}\)
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Các câu hỏi tương tự
6 tháng 4 2022 lúc 19:30
Bài 1:Tính
a,3/2+5/4+5/8
b,4/5-3/8+2/4
c,3+6/8-5/4
d,5/6-1/2+2
e,3/5+6/11+7/13+2/5+16/11+19/13
g,75/100+18/21+29/32+1/4+3/21+13/32
Giusp mình nhé
6/16:3/6 < x < 20/21 : 4/21
8/21 x 7 /2 < x < 11/8 x 4
6/16:3/6 < x < 20/21 : 4/21
8/21 x 7 /2 < x < 11/8 x 4
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
1+9+2-5+3+9+6-4-6+4-3-1+6-2+8+2+6-7+8-11+7+32-9-1+66-21-0+9+4+6+2+56-9-4+1029=
các bạn gửi câu trả lời cho mình nha ^_^
2.tính
a)3/2/9/4+21/8=
b)3/10+1/2*1/3=
c)8/15/2/11+2/15/2/11=
d)3/4*2/3-3/4*1/6=
1+4=5
2+5=12
3+6=21
8+11=?
1+4=5
2+5=12
3+6=21
8+11=.....
a)3/2 x 4/7 8/21 : 2/3 8/21 : 4/7 4/7 x 2/3
b)3/11 x 2 6/11 : 3/11 6/11 : 2 2 x 3/11
c)4 x 2/7 8/7 : 2/7 8/7 : 4 2/7 x 4