\(\frac{2}{3}=\frac{2.6}{3.6}=\frac{12}{18}\)
\(\frac{14}{56}=\frac{14:14}{56:14}=\frac{1}{4}\)
\(\frac{24}{36}=\frac{24:3}{36:3}=\frac{8}{12}\)
\(\frac{x}{152}=\frac{2}{5}\Rightarrow x.5=2.152\Rightarrow x.5=304\Rightarrow x=304:5=60,8\)
a)\(\frac{2}{3}=\frac{12}{x}\Rightarrow12\times3=2x\)
=>36=2x
=>x=18
b)\(\frac{14}{56}=\frac{1}{4}=\frac{1}{x}\Rightarrow4=x\)
=>x=4
c)\(\frac{24}{36}=\frac{2}{3}=\frac{x}{12}\Rightarrow12\times2=3x\)
=>24=3x
=>x=8
d)\(\frac{x}{152}=\frac{2}{5}\Rightarrow2\times152=5x\)
=>304=5x
=>x=\(\frac{304}{5}\)
a} 12/18=12/x
=> x=18
b}14/56=14/14x
=> 14x=56
=> x=56:14=4
c}24/36=3x/36
=> 3x=24
=> x=24:3
=> x=8
d} ko tồn tại vì 152 ko chia hết cho 5
a) \(\frac{2}{3}=\frac{12}{x}\Rightarrow x=18\)
b)\(\frac{14}{56}=\frac{1}{x}\Rightarrow x=4\)
c)\(\frac{24}{36}=\frac{x}{12}\Rightarrow x=8\)
d)\(\frac{x}{152}=\frac{2}{5}\Rightarrow\)ko có x thoả mãn
Con chỉ làm cho có lệ thôi mà bố Thắng làm gì ghe thế
a} 2/3 = 12/18
b} 14/56 = 1/4
c} 24/36 = 8/12
d} 60,8/152
Tìm x, biết: 18 : x + 12 : x = 3