Page 48 - Start Up Mathematics_7

Exemplar Problems

3 2
1. of is equal to:
7 5
5 5 1 6
(a) (b) (c) (d)
15 35 35 35

2
2. 2 ÷ 5 is equal to:
3
8 40 40 8
(a) (b) (c) (d)
15 3 5 3
3 7
3. The lowest form of the product 2 × is _______ .
7 9
4. The reciprocal of an improper fraction is an improper fraction. (True/False)

1 1
5. How many kg boxes of chocolates can be made with 1 kg chocolates?
16 2
6. It takes 17 full specific type of trees to make one tonne of paper. If there are 221 such trees
in a forest, then
(i) What fraction of forest will be used to make:
(a) 5 tonnes of paper (b) 10 tonnes of paper
7
(ii) To save part of the forest, how much of paper we have to save?
13
3 1
7. Cost of burger is ` 20 and of macpuff is ` 15 . Find the cost of 4 burgers and 14 macpuffs.
4 2
3 1 3
8. Divide by of .
10 4 5

Group Activity

Fun with Fractions (A Game based on Comparison of Fractions)
This activity-based game can be played either between two partners
or in a small group consisting of upto 5 students.
• Requirement: Each participant should trace or draw F similar to the
one given here.

• Cut thirteen identical squares on a thick paper or cardboard. Write one
of these fractions on each square:
1 1 1 1 1 2 3 2 4 5 1 3 6
, , , , , , , , , , , ,
2 3 4 6 8 8 8 12 12 12 24 24 24
Each of these squares with a fraction written on them is referred to as
fraction cards.

Rules:
1. Keep all the fraction cards in a pile (one above the other) facing downwards.
2. Each person should pick a fraction card from the top of the pile.

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