Fractions

Order fractions 異分母比大小

100

比大小 6/6(　　)13/13

6/6(　＝　)13/13

200

比大小 8/9(　　)16/18

8/9(　=　)16/18

300

比大小 4/9(　　)4/11

4/9(　＞　)4/11

400

比大小 1(1/3)(　　)3/9

1(1/3)(　＞　)3/9

500

比大小 11/6(　　)1(3/4)

11/6(　＞　)1(3/4)

Add and subtract fractions異分母的加減

100

2/3＋3/5=

1(4/15)

200

7/39－1/13=

4/39

300

2(3/5)＋1(1/4)=

3(17/20)

400

7(1/8)－2(5/9)=

4(41/72)

500

1/2＋3/4＋5/8=

1(7/8)

Multiply fractions by whole numbers分數乘以整數

100

2x(1/4)=

1/2

200

6x (2/9)=

1(1/3)

300

(5/9)x3=

1(2/3)

400

8x(9/14)=

5(1/7)

500

7x(11/28)=

2(3/4)

Multiply fractions by fractions 分數乘以分數

100

(1/2)x(12/4)=

3/2

200

(3/12)x(4/5)=

1/5

300

(4/7)x(28/13)=

1(3/13)

400

(6/13)x(26/28)=

6/14

500

(13/32)x(7/39)=

7/96

Multiply mixed number by mixed number帶分數乘以帶分數

100

3(2/3) x 1(1/3)=

4(8/9)

200

2(1/2)x2(6/11)=

6(4/11)

300

2(1/13)x1(1/3)=

2(10/13)

400

1(14/15)x2(1/2)=

4(5/6)

500

3(1/3)x4(4/9)=

14(22/27)