\(\frac{123.14-123}{123.12+123}\)
\(=\frac{123.\left(12+2\right)-123}{123.12+123}\)
\(=\frac{123.12+123.2-123}{123.12+123}\)
\(=\frac{123.12+246-123}{123.12+123}\)
\(=\frac{123.12+123}{123.12+123}\)
\(=1\)
Học tốt #
\(\frac{123\times14-123}{123\times12+123}\)
\(=\frac{123\times\left(14-1\right)}{123\times\left(12+1\right)}\)
\(=\frac{123\times13}{123\times13}\)
\(=1\)
_Chúc bạn học tốt_
\(\frac{123.14-123}{123.12+123}\)
\(=\frac{123.\left(14-1\right)}{123.\left(12+1\right)}\)
\(=\frac{123.13}{123.13}=1\)
