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计算:
( 1) $\left(\frac{1}{3} \sqrt{27}-\sqrt{24}-3 \sqrt{\frac{2}{3}}\right) \div \sqrt{12}$.
(2) $\sqrt{30} \times \frac{3}{2} \sqrt{2 \frac{2}{3}} \div 2 \sqrt{2 \frac{1}{2}}$.
                        
不再提醒