Adding, Subtracting, Multiplying & Dividing Fractions

Adding Fractions

100

5/6 + 4/5

1 19/30

200

11/12 + 7/8

1 19/24

300

6 5/12 + 12 5/8

 19 1/24

400

17 2/9 + 12 1/3

29 5/9

500

Everyone will get minus 300 points

- 300

Subtracting Fractions

100

19/25 - 1/2

 13/50

200

5/8 - 11/20

 3/40

300

Class numbers who are even will get minus 200 points

- 200

400

26 - 4 1/9

 21 8/9

500

18 1/9 - 1 3/7

16 43/63

Multiplying Fractions

100

All names with letter R will get plus 300 points

+ 300

200

5/6 x 3/5

1/2

300

8/9 x 9/10

4/5

400

3 5/8 x 4 1/2

 16 5/16

500

6 2/3 x 7 3/5

 50 2/3

Number Theory

100

Express as an improper fraction 3 1/16

 49/16

200

Express as a mixed number 103/25

 4 3/25

300

Find the prime factorization for 240

 2 x 2 x 2 x 2 x 3 x 5

400

Find the GCF for 27, 45, 63

 9

500

Find the LCM for 15, 75, 25

 75