F2-L8 Fractions Practice : Addition and Subtraction

FRACTIONS – L2 (F2)      (Est: 50-60 mins)       Date/Time:                           Tutor:             

(Part 1) Revise(20mins)                                Start Time:                  

1. Fractions Addition and Subtraction

(I) (Part2) Practice (~15mins)     Start Time:                     

1.    囗 +   7 = 1                                                    

       囗     12

2.    囗 +   5 = 1                                                        

        囗    13

3.    囗 -   5 =   1                                              

        囗    9      9

4.    囗 -   3 =   3                                              

        囗    8     8

Express each of the following value in its simplest form

5.            3 + 3 = 

                     4

6.            4 + 4= 

               7     7 

7.            5+ 5 + 5 =       x 5

          8   8    8              8

(II) Word Problems/PSLE (~25 mins)                   Start Time:                             

8. I have 11 blue pens and 6 red pens in my pencil case. What fraction of the pens in my pencil case is red? (5/p1/f)

(1) 6 /11

(2) 5 /11

(3) 6 /17

(4) 11/ 17                                                                 

9. Amos collected some plastic bottles. He gave away 69 of them for recycling and had 2/5 of them left. How many bottles did Amos collect? (28/p1/18f)

10. What is the missing number in 囗? (4/p2/18f)

                 3/7 = 45 / 囗

For questions 11-12

3 out of 8 children are boys.

11.                 of the children are boys.

12.                 of the children are girls.

13.  Lily ate 1/3 of a pie. What fraction of the pie is left?

14.  Lily bought a pizza. Alice ate 1/8 of the pizza and Betty ate 1/4 of the pizza. If Lily ate the rest of the pizza, what fraction of the pizza did she eat?

15.  The mass of a mango is 1/5 kg. An orange is 1/10 kg lighter than the mango. What is the total mass of the mango and the orange?

16.      James spent 1/6 of his money on a pencil case, 1/12 of it on a pen and 5/12 of it on a ball. What fraction of his money did he spend altogether? 

17*.  Find the value of 2 -    2 -  3

                                             3   4

18*.  Find the value of 1 -     1 -  1
                                             4    3

End Time:                        Total Mark :    

Tutor Remark:                                                                                                                  

Answer Key
1.  5/12
2.  8/13
3.  6/9
4.  6/8
5.  3 3/4
6.  8/7
7.  3
8.  6/17
9.  115
10.  105
11.  3
12.  5
13.  2/3
14.  5/8
15.  3/10 kg
16.  2/3
17.  2 11/12
18.  5/12