单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,练习二十,分数的意义和性质,1,4,2,4,0.5,1,2,2.,1,10,9,10,3.,1,4,9,25,3,5,3,4,7,25,129,500,4.,就是求,48,和,54,的最大公因数。,48,和,54,的最大公因数是,_,。,2,3=6,答：每组最多有,6,人。,45,150,=,45,150,=,3,10,3,10,=,27,90,10,45,=,10,45,=,2,9,9,=,20,90,2,7,.,答：五一班戴近视镜的状况占五年级近视状况的大多数。,求,4,和,6,的,_,。,最小公倍数,4和6的最小公倍数是 。,元,答：李阿姨至少带了元。,10,、,11,、,1,4,=,5,20,=,10,40,1,5,=,4,20,=,8,40,4,5,=,16,20,=,32,40,7,10,=,14,20,=,28,40,