18.下面四个分数,不是最简分数的是( )
| A. | $\frac{1}{12}$ | B. | $\frac{3}{36}$ | C. | $\frac{7}{58}$ | D. | $\frac{15}{32}$ |
17.有一篮子鸡蛋,3个一起拿,5个一起拿,8个一起拿都正好拿完,这筐鸡蛋至少有( )
0 155689 155697 155703 155707 155713 155715 155719 155725 155727 155733 155739 155743 155745 155749 155755 155757 155763 155767 155769 155773 155775 155779 155781 155783 155784 155785 155787 155788 155789 155791 155793 155797 155799 155803 155805 155809 155815 155817 155823 155827 155829 155833 155839 155845 155847 155853 155857 155859 155865 155869 155875 155883 199269
| A. | 30个 | B. | 60个 | C. | 120个 |