Show:
A
B
C
D
E
100

2/3+1/8

19/24

100

1/4+1/6=

5/12

100

5/9+1/2=

1 1/18

100

7/10+3/4=

1 9/20

100

5/8+2/4+3/6=

1 15/24

200

8/9-5/6=

1/18

200

11/12-7/8=

1/24


200

2/3-3/8=

7/24


200

2-1/3-9/10=

23/30


200

4-5/6-3/8=

2 19/24

300

Use benchmarks.

1/10+2/5=

0+1/2=1/2

300

Use benchmarks

8/9+9/10=

1+1=2

300

Use benchmarks.

1/6+7/12+5/6=

0+1/2+1=1 1/2

300

Use benchmarks.

4/5-3/7=

1-1/2=1/2


300

Use benchmarks.

5/8-1/9=

1/2-0=1/2

400

Express in the simplest form.

14/2=

3 1/2

400

Express in the simplest form.

10/12=

5/6

400

Express in the simplest form.

7/3=

2 1/3

400

Express in the simplest form.

11/4=

2 3/4

400

Express in the simplest form.

25/7=

3 4/7



500

Express as a decimal.

4/5

4/5=8/10=0.8


500

Express as a decimal.

13/10

13/10=1+3/10=1+0.3=1.3

500

Express as a decimal.

47/20

47/20=2+7/20=2+0.35=2.35


500

Express as a decimal.

47/50

47/50=94/100=0.94

500

Express as a decimal.

45/20

45/20=2+25/100=2+0.25=2.25