Math Mania: Class 9 Edition

ADDITION

100

Add: 1/8 + 3/8

1/2

200

Add: 2/15 + 6/15

8/15

300

Add: 3/2 + 5/3

19/6

400

Add: 3/20 + (−7/20)

−1/5

500

Add: 17/7 + 5/9

178/63

SUBTRACTION

100

Subtract: 13/15 − 7/15

2/5

200

Subtract: 5/3 − 7/3

−2/3

300

Subtract: 9/24 − 3/7

−3/56

400

Subtract: −7/8 - 3/16

-17/16

500

Subtract and simplify: 5/2 + 13/4 − 6 × 3/4

−1/4

MULTIPLICATION

100

Multiply: 2/11 × 5/6

5/33

200

Multiply: (−3/11) × (−33/35)

9/35

300

Multiply: (−11/3) × (−27/77)

9/7

400

Multiply: 3/2 × 5/19

15/38

500

Multiply and simplify: (3/4 + 2/3) × 1/4    

17/48

OPERATIONS

100

Simplify: (3/4 + 9/3)

15/4

200

Simplify: 7/5 − 1/6

37/30

300

Simplify: (7/9 × 3/7) + (1/3 × 3/2)

3/2

400

Simplify: (4/5 + 6/10) ÷ (3/2 − 1/4)

28/15

500

Simplify: (2/3 − 1/4) × 3/2

5/8

WORD PROBLEMS

100

Write −14 as a rational number

-14/1

200

Which is greater: 3/4 or 5/6?

5/6 

300

Write 0 as a rational number

0/1

400

A number when multiplied by 13/3 gives 39/12. Find the number.

3/4

500

Divide: 35/33 ÷ (−7/22)

-110/21