\(\frac{121212+12121212-1212}{363636+36363636-3636}\)
\(=\frac{12.10101+12.1010101-12.101}{36.10101+36.1010101-36.101}\)
\(=\frac{12\left(10101+1010101-101\right)}{36\left(10101+1010101-101\right)}\)
\(=\frac{12}{12.3}\)
\(=\frac{1}{3}\)
Ta có: \(\frac{121212+12121212-1212}{363636+36363636-3636}\)
=\(\frac{12\times\left(10101+1010101-101\right)}{36\times\left(10101+1010101-101\right)}\)
=\(\frac{12}{36}\)
=\(\frac{1}{3}\)
\(\frac{121212+12121212-1212}{363636+36363636-3636}\)
\(=\frac{121212+12121212-1212}{3\times121212+3\times12121212-3\times1212}\)
\(=\frac{121212+12121212-1212}{3\times\left(121212+12121212-1212\right)}\)
\(=\frac{1}{3}\)
_Chúc bạn học tốt_
\(\frac{121212+12121212-1212}{363636+36363636-3636}\)
= \(\frac{12.10101+12.1010101-12.101}{36.10101+36.1010101-36.101}\)
= \(\frac{12.\left(10101+1010101-101\right)}{36.\left(10101+1010101-101\right)}\)
= \(\frac{12}{36}\)= \(\frac{1}{3}\)
121212+12121212-1212/363636+36363636-3636
=12x10101+12x1010101-12x101/36x10101+36x1010101-36x101
=12x(10101+1010101-101)/36x(10101+1010101-101)
=12/36
=1/3
