Примеры: 1) 7 \(\frac{12}{9}\) + \(\frac{5}{18}\) = 7 \(\frac{72}{18}\) + \(\frac{5}{18}\) = 7 \(\frac{77}{18}\) = 8 \(\frac{5}{18}\)

Примеры:

1) \( 7 \frac{12}{9} + \frac{5}{18} = 7 \frac{12 \cdot 2}{9 \cdot 2} + \frac{5}{18} = 7 \frac{24}{18} + \frac{5}{18} = 7 \frac{24+5}{18} = 7 \frac{29}{18} = 7 + 1 \frac{11}{18} = 8 \frac{11}{18} \)