Tính 24.47-23/24 47.23
Giải thích
\[\frac{{24 \cdot 47 - 23}}{{24 + 47 \cdot 23}} = \frac{{47\left( {23 + 1} \right) - 23}}{{24 + 47 \cdot 23}} = \frac{{47 \cdot 23 + 47 - 23}}{{24 + 47 \cdot 23}} = \frac{{47 \cdot 23 + 24}}{{24 + 47 \cdot 23}} = 1.\]