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\(a+\frac{2}{44}=\frac{24}{12}\)
\(a=\frac{24}{12}-\frac{2}{44}\)
\(a=\frac{43}{22}\)
Vậy \(a=\frac{43}{22}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Ta có : a + 2/44 =24/12
a=24/12-2/44
a=43/22
Vậy a=43/22
![](https://rs.olm.vn/images/avt/0.png?1311)
c1
a,3/15 = 3:3/15:3 = 15
33/44 = 33:11/44:11 = 34
2/8 = 2:2/8:2 = 1/4
b,9/12 =9:3/12:3 = 34
24/36 =24:12/36:12 = 23
3/8 = 3:1/8:1 = 3/8
c2
a) =12x(4+6)/24
= 12x10/24
=120/24
=5
b,16x8-16x2/12x4
=16x(8-2)/48
=16x6/48
=2
c3
5/8=45/72
20/15=4/3=96/72
24/32=3/4=54/72
15/18=5/6=60/72
77/99=7/9=56/72
c4
2/3=2/3
12/15=4/5
24/18=4/3
16/48=1/3
75/100=3/4
30/45=2/3
12/36=1/3
20/15=4/3
các phân số lớn hơn 1 luôn có mẫu số bé hơn tử số
vậy các số lớn hơn 1 là 24/18,20/15
k mk nha thank mọi ng'
a, \(\frac{3}{15}=\frac{1}{5}=\frac{4}{20}\); \(\frac{33}{44}=\frac{3}{4}=\frac{15}{20}\); \(\frac{2}{8}=\frac{1}{4}=\frac{5}{20}\)
b, \(\frac{9}{12}=\frac{3}{4}=\frac{18}{24}\); \(\frac{24}{36}=\frac{2}{3}=\frac{16}{24}\); \(\frac{3}{8}=\frac{9}{24}\)
Bài 2 :
a,\(\frac{12x4+12x6}{24}=\frac{12x\left(4+6\right)}{24}=\frac{1x10}{2}=\frac{10}{2}=\frac{5}{1}\)
b, \(\frac{16x8-16x2}{12}=\frac{16x\left(8-2\right)}{12}=\frac{8x6}{6}=\frac{8}{1}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{a+2}{44}=\frac{24}{32}\)
<=> ( a + 2 ).32 = 24.44
=> a + 2 = \(\frac{24.44}{32}=\frac{1056}{32}=33\)
=> a + 2 = 33 => a = 31
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\frac{a+2}{44}=\frac{24}{12}\Leftrightarrow\left(a+2\right).12=44.24\Rightarrow a+2=\frac{44.24}{12}=\frac{44.2.12}{12}=44.2=88\Rightarrow a=86\)
Ta có:\(a+\frac{2}{44}=\frac{24}{12}\)
\(a=\frac{24}{12}-\frac{2}{44}\)
\(a=\frac{43}{22}\)