Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
a, cách 1 : 7/11 : 3/5 + 4/11 : 3/5 b, cách 1 : [ 6,24 + 1,26 ] : 0,75
=[ 7/11 + 4/11 ] : 3/5 = 7,5 : 0,75
= 1 : 3/5 = 10
= 5/3 cách 2 : [ 6,24 + 1,26 ] : 0,75
cách 2 :7/11 : 3/5 + 4/11 : 3/5 = 6,24 : 0,75 + 1,26 : 0,75
=35/33 + 20/33 = 8,32 + 1,68
=55/33 = 10
=5/3
\(\frac{7}{11}:\frac{3}{5}+\frac{4}{11}:\frac{3}{5}\)
= ( \(\frac{7}{11}+\frac{4}{11}\)) : \(\frac{3}{5}\)
= 1 : \(\frac{3}{5}\)
= \(\frac{5}{3}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) C1:
7/11 : 3/5 + 4/11 : 3/5 = 7/11 x 5/3 + 4/11 x 5/3
= (7/11 + 4/11) x 5/3
= 1 x 5/3
= 5/3
C2:
7/11 : 3/5 + 4/11 : 3/5 = (7/11 + 4/11) : 3/5
= 1 : 3/5
= 1 x 5/3
= 5/3
b) C1:
(6,24 + 1,26) : 0,75 = 7,5 : 0,75
= 10
C2:
(6,24 + 1,26) : 0,75 = 6,24 : 0,75 + 1,26 : 0,75
= 8,32 + 1,68
= 10
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{7}{11}:\frac{3}{5}+\frac{4}{11}:\frac{3}{5}=1:\frac{3}{5}=\frac{5}{3}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
Cách 1
A)(7/11*4/11)*5/3=1*5/3
Cách 2 (7/11*4/11):3/5=1:3/5=5/3
Cách 1
B)7,5:0,75=10
Cách 2
6,24:0,75+1,26:0,75=8,32+1,68
Lời giải bài toán 4/164
![](https://rs.olm.vn/images/avt/0.png?1311)
\(a.\left(\frac{7}{11}+\frac{4}{11}\right):\frac{3}{5}=1.\frac{5}{3}=\frac{5}{3}\)cách 1
\(\left(\frac{7}{11}:\frac{3}{5}\right)+\left(\frac{4}{11}:\frac{3}{5}\right)=\frac{35}{33}+\frac{20}{33}=\frac{5}{3}\)cách 2
\(b.\left(6,24+1,26\right):0,75=7,5:0,75=10\)cách 1
\(\left(6,24:0,75\right)+\left(1,26:0,75\right)=8,32+1,68=10\)cách2
a) 7/11 : 3/5 +4/11 :3/5
=(7/11 +4/11) :3/5
=1:3/5
=3/5
b) (6,24+1,26):0,75
= 7,5 :0,75
= 10