1、分数除法计算题3= 2= 3= 6= 2= 4= 7= 2= 4= 2= 3= 8= 5= 6= 10= 12= 2= 15= 11= 3= 5= 4= 4= 9= 8=5= 4= 1= 4= 5= 3= 7= 36= 6= =7= 8= 4= = = = = = 24= = = = = = = =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 0.25(1) 14 10 解方程x- x -4= 21 2X + = X X= X=20 X-X=400 X = 5X3 X12 X-X= X( + )=
2、X= 4X6=2 X= X+X=42 X21=4 XX= XX121 x + x = 4 X=参考答案分数除法计算题3=1/5 2=2/7 3=2/21 6=1/20 2=1/5 4=5/24 7=1/10 2=1/20 4=3/28 2=3/11 3=1/8 8=1/10 5=1/8 6=3/22 10=1/12 12=2/27 2=1/6 15=1/21 11=1/12 3=1/9 5=1/9 4=1/8 4=1/5 9=1/15 8=1/145=1/14 4=1/14 1=10/13 4=2/15 5=1/10 3=5/21 7=3/56 36=3/160 6=5/36 =3/27=5
3、8=25/2 4=1/10 =1 =12/5=3/10 =16/49 =7/6 =4/3 24=27 =8/7 =8/15 =1/2 =9/10=1/3 =4/3 =27/14 =8/5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 14 10=1/4 =7/6 =15/224 =1/9 =2 =1/32解方程x- x -4= 21 2X + = X X=X=125 x=1/10 x=21/20 X=20 X-X=400 X = X=25/3 x=640 x=1/17 5X3 X12 X-X= X=2/7 x=9/2 x=9/2 X( + )= X=1/6 x=2X= 4X6=2X=1/8 x=3/2X= X+X=42 X21=4 X=8 x=36 x=60 XX= X=16 x=84 x=2/5 XX121 x + x = 4 X= X=88 x=6 x=3/7