\(0,5=\dfrac{1}{2}\)
\(1,\left(45\right)=\dfrac{16}{11}\)
\(0,2\left(13\right)=\dfrac{211}{990}\)
\(0,04\left(3\right)=\dfrac{13}{300}\)
Ta có:
\(0,5=\dfrac{1}{2}\)
\(1,\left(45\right)=1+0,\left(45\right)=1+45.0,\left(01\right)\)
\(=1+45.\dfrac{1}{99}=\dfrac{16}{11}\)
\(0,2\left(13\right)=0,2+0,0\left(13\right)=0,2+0,\left(13\right):10\)
\(=0,2+0,\left(01\right).13:10=0,2+\dfrac{1}{99}.13:10=\dfrac{211}{990}\)
\(0,04\left(3\right)=0,04+0,00\left(3\right)\)
\(=0,04+0,\left(3\right):100=0,04+0,\left(1\right).3:100\)
\(=0,04+\dfrac{1}{9}.3:100=\dfrac{13}{300}\)
Chúc bạn học tốt!!!
\(0,5=\dfrac{1}{2}\)
\(1,\left(45\right)=1+0,\left(45\right)=1+45.0,\left(01\right)\)
\(=1+45.\dfrac{1}{99}=\dfrac{16}{11}\)
\(0,2\left(13\right)=0,2+0,0\left(13\right)=0,2+0,\left(13\right):10\)
\(=0,2+0,\left(01\right).13:10=0,2+\dfrac{1}{99}.13:10=\dfrac{211}{990}\)
\(0,04\left(3\right)=0,04+0,00\left(3\right)\)
\(=0,04+0,\left(3\right):100=0,04+0,\left(1\right).3:100\)
\(=0,04+\dfrac{1}{9}.3:100=\dfrac{13}{300}\)
0,5=1/2
1,(45) =16/11
0,2 (13) = 211/990
0,004(3) =13/300
nho tick cho miknha cac ban cam on cac ban nhieu