NOTE: Answers to all questions are given at the end of this exercise.

__Question No. 1:__

**Evaluate the following:**

**(a) 3 3/5 + 1/5**

**(b) 2 1/7 + 3 5/8**

**(c) 2 7/100 + 1 3/40**

**(d) 7 1/5 – 3 3/10**

**(e) 9 2/5 – 5 1/3**

** **

__Question No. 2:__

**Evaluate the following:**

**(a) ****4/7 + 5/21 + 11/42**

**(b) 5/8 + 21/10 – 17/20**

**(c) 4 2/3 + 1 3/5 – 1 1/4**

**(d) 4 3/5 – 1 2/15 – 2 7/9 – 2/45**

** **

__Question No. 3:__

**On Thursday, Joan ran 1 17/20 km. On Friday, she ran 2 8/15 km. Find the total distance she ran in two days.**

** **

__Question No. 4:__

**John has 9 5/16 litres for paint. After using 4 11/12 litres for painting a room, how much paint has he left?**

** **

__Question No. 5:__

**During the school spring cleaning day, Robin and his classmates spent 1 ¼ hours and 1 1/12 hours cleaning two classrooms assigned to them respectively.**

**(a) Find the total time they spent.**

**(b) Which classroom took them longer to clean?**

**(c) How much longer did they spend in cleaning one classroom than the other?**

** **

__Question No. 6:__

**Mary has 6 3/4 cups of flour. She used 2 7/12 cups of flour in one recipe and 2 13/24 cups of flour in another.**

**(a) How much floor did she use altogether?**

**(b) How much floor has she left?**

** **

__Question No. 7:__

**The police conduct regular anti-secret society operations among youths. On Friday night, the officers spent 3/4 hours, 1 1/2 hours and 2 1/4 hours checking on youths at three youth hangouts respectively. Find the total time the officers spent on their operation.**

**Answers**

**(from left to right)**

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