5 11/30-3 18/30=? Дроби

5 11/30-3 18/30=161/30-108/30=53/30=1 23/30

[latex]5 \frac{11}{30} - 3 \frac{18}{30} = \frac{161}{30} - \frac{108}{30} = \frac{53}{30} = 1 \frac{23}{30} [/latex]