Primary 5 Mathematics Fractions Quiz

P5 Maths Quiz: Fractions

Questions: 20 Time: 35 minutes Total Marks: 50

Section A: Multiple Choice (10 marks)

Choose the best answer. [2 marks each]

1. Which fraction is equivalent to 3/4?

   • A) 6/9
   • B) 9/12
   • C) 12/15
   • D) 15/18

2. What is 2/5 + 3/10?

   • A) 5/15
   • B) 7/10
   • C) 5/10
   • D) 1/2

3. Find 3/8 × 2/3.

   • A) 5/11
   • B) 6/24
   • C) 1/4
   • D) 6/11

4. Which fraction is the largest?

   • A) 7/12
   • B) 5/8
   • C) 2/3
   • D) 3/4

5. What is 4 1/2 ÷ 3?

   • A) 1 1/2
   • B) 1 1/6
   • C) 2/3
   • D) 1 2/3

Section B: Short Answer (20 marks)

Show your working clearly. [4 marks each]

6. Calculate: 2 3/4 + 1 5/6

7. Find: 5/6 - 2/9

8. Simplify: 24/36 to its lowest terms.

9. Convert these improper fractions to mixed numbers: a) 17/5 b) 23/8

10. Calculate: 2/3 × 1 1/4

Section C: Word Problems (20 marks)

Use model drawing or show your working clearly. [5 marks each]

11. Cake Problem Mary ate 2/5 of a chocolate cake. Her brother ate 1/4 of the same cake. What fraction of the cake was left?

12. Fabric Problem Mrs. Lim has 4 2/3 metres of fabric. She uses 2 3/4 metres to make a dress. How much fabric does she have left?

13. Money Problem Ali spent 3/8 of his money on books and 1/4 of his money on food. If he spent $45 on books, how much money did he have at first?

14. Garden Problem Tom planted flowers in 3/5 of his garden. He planted vegetables in 1/3 of the remainder. If the vegetable patch is 8 m², what is the total area of his garden?

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End of Quiz

Check your answers carefully. Remember to simplify fractions to lowest terms.

P5 Maths Quiz: Fractions - ANSWERS

Questions: 20 Time: 35 minutes Total Marks: 50

Section A: Multiple Choice (10 marks)

2 marks each

1. B) 9/12

   • 3/4 = (3×3)/(4×3) = 9/12
   • Check: 9 ÷ 3 = 3, 12 ÷ 3 = 4 ✓

2. B) 7/10

   • 2/5 + 3/10 = 4/10 + 3/10 = 7/10
   • Convert 2/5 to 4/10 (×2/×2)

3. C) 1/4

   • 3/8 × 2/3 = (3×2)/(8×3) = 6/24 = 1/4
   • Simplify: 6÷6 = 1, 24÷6 = 4

4. D) 3/4

   • Convert to same denominator (24):
   • 7/12 = 14/24, 5/8 = 15/24, 2/3 = 16/24, 3/4 = 18/24
   • 18/24 is largest

5. A) 1 1/2

   • 4 1/2 ÷ 3 = 9/2 ÷ 3 = 9/2 × 1/3 = 9/6 = 3/2 = 1 1/2

Section B: Short Answer (20 marks)

4 marks each

6. 2 3/4 + 1 5/6: Convert to improper fractions: 2 3/4 = 11/4, 1 5/6 = 11/6

   Find common denominator (12): 11/4 = 33/12, 11/6 = 22/12 33/12 + 22/12 = 55/12 = 4 7/12

7. 5/6 - 2/9: Common denominator = 18 5/6 = 15/18, 2/9 = 4/18 15/18 - 4/18 = 11/18

8. Simplify 24/36: Find GCD of 24 and 36: 12 24 ÷ 12 = 2, 36 ÷ 12 = 3 2/3

9. Convert to mixed numbers: a) 17/5 = 17 ÷ 5 = 3 2/5 (3 remainder 2) b) 23/8 = 23 ÷ 8 = 2 7/8 (2 remainder 7)

10. 2/3 × 1 1/4: Convert 1 1/4 to improper: 5/4 2/3 × 5/4 = 10/12 = 5/6

Section C: Word Problems (20 marks)

5 marks each

11. Cake Problem Mary ate: 2/5 Brother ate: 1/4 Total eaten = 2/5 + 1/4

    Common denominator = 20 2/5 = 8/20, 1/4 = 5/20 Total eaten = 8/20 + 5/20 = 13/20

    Left = 1 - 13/20 = 20/20 - 13/20 = 7/20

12. Fabric Problem Had: 4 2/3 m = 14/3 m Used: 2 3/4 m = 11/4 m

    Common denominator = 12 14/3 = 56/12, 11/4 = 33/12 Left = 56/12 - 33/12 = 23/12 = 1 11/12 metres

13. Money Problem Books = 3/8 of total money = $45 1/8 of total =$45 ÷ 3 = $15 Total money =$15 × 8 = $120

14. Garden Problem Model Drawing: Total garden = 5 units Flowers = 3 units Remainder = 2 units

    Vegetables = 1/3 of remainder = 1/3 × 2 units = 2/3 units 2/3 units = 8 m² 1 unit = 8 ÷ 2 × 3 = 12 m² Total garden = 5 × 12 = 60 m²

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Marking Scheme:

• Section A: 1 mark for correct letter, 1 mark for working (where shown)
• Section B: 2 marks for method, 2 marks for correct answer
• Section C: 2 marks for understanding/model, 2 marks for method, 1 mark for answer

Total: 50 marks