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1、分数除法练习题 一、分数除以整数3= 2= 3= 2= 6= 4= 7= 2= 4= 5= 6= 10= 12= 2= 15= 5= 11= 3= 4= 9= 4= 8= 5= 1= 二、整数除以分数6= 4= 5= 6= 7= 36= 6= 7= 4= 24= 3= 12= 9= 2= 3= 1= 11= 5= 4= 4= 10= 36= 5= 8= 三、分数除以分数= = = = = = = = = = = = = = = = = = = 四、分数混合运算1- () 11 01 () 0.32 62.410(1) (0.4)(0.5) () (5) (0.75)0.4 0.80.8 0.2
2、5(1) (125 34) 0.75+0.75 五、解方程 x-= 12x=XX = 57 X= 3X = 六、列式计算 一个数的是64,这个数的是多少? 2。 一个数的等于120的,这个数是多少?3. 乘的积,减去,差是多少? 4. 一个数的是,这个数是多少?七、解决问题1、美术班有男生20人,是女生的,女生有多少人? 2、甲铁块重吨,相当于乙铁块的。乙铁块重多少吨? 3、食堂运来800千克大米,已经吃去,吃去多少千克? 4、食堂运来一批大米,已经吃去600千克,正好吃去,这批大米共多少千克?5、 一种电脑现在比原价降低,正好降低800元,这种电脑原价多少元?参考答案一、分数除以整数3=1/
3、5 2=2/7 3=2/21 2=1/5 6=1/20 4=5/24 7=1/10 2=1/20 4=3/28 5=1/8 6=3/22 10=1/12 12=2/27 2=1/6 15=1/21 5=1/9 11=1/12 3=1/9 4=1/5 9=1/15 4=1/8 8=1/14 5=1/14 1=10/13 二、整数除以分数6=21 4=15/2 5=10 6=8 7=56/3 36=160/3 6=36/5 7=5 4=10 24=27 3=21/5 12=75/4 9=81 2=20 3=15/7 1=5/4 11=12 5=14/3 4=7 4=16/7 10=13 36=16
4、 5=25/2 8=25/2 三、分数除以分数=1 =12/5 =3/2 =7/6 =3/10 =16/49 =11/6 =1/2=4/3 =21/25 =6/7 =28/9 =18/25 =4/5 =2/5 =6/19 =5/6 =196/225 =18/13 =25/12 四、分数混合运算1- () =5/6 =1/25 =0 =4/311 01 () =1/5 =3/5 =7/10 =8/15 0.32 62.4= =1/4 =7/20 =33/1010(1) (0.4)(0.5) () =9 =2/5 =0 (5) (0.75)0.4 =11/12 =19/12 =125/960.80.8 0.25(1) =1/15 =15/16 =15/14 =100/147 =4 =1(125 34) =1000 =29 =31 = =11110 =5/8 =55/16 =404/225 =2 =4 =3/2 =5/3 =4/7 =1/8 =2/150.75+0.75 =0.75 =4/5 =6 =1/