NCERT Class 7 Mathematics

42 MATHEMATICS

2. Multiply and reduce to lowest form (if possible) :

(i)

(^222)
33
 (ii)
27
79
 (iii)^36
84
 (iv)^93
55

(v)
115
38
 (vi)^113
210
 (vii)^412
57


3. For the fractions given below :
   (a) Multiply and reduce the product to lowest form (if possible)
   (b) Tell whether the fraction obtained is proper or improper.
   (c) If the fraction obtained is improper then convert it into a mixed fraction.

(i)

(^215)
54
 (ii) 627
59
 (iii)^315
23
 (iv)^532
67

(v)
324
57
 (vi) 233
5
 (vii) 343
75


4. Which is greater :

(i)

2

7 of

3

4 or

3

5 of

5

8 (ii)

1

2 of

6

7 or

2

3 of

3

7

5. Saili plants 4 saplings, in a row, in her garden. The distance between two adjacent

saplings is

3

4

m. Find the distance between the first and the last sapling.

6. Lipika reads a book for 13
   4

hours every day. She reads the entire book in 6 days.

How many hours in all were required by her to read the book?

7. A car runs 16 km using 1 litre of petrol. How much distance will it cover using
   23
   4
   litres of petrol.


8. (a) (i) Provide the number in the box , such that

210

330

.

(ii) The simplest form of the number obtained in is.

(b) (i) Provide the number in the box , such that

324

575

?

(ii) The simplest form of the number obtained in is.

2.4 DIVISION OF FRACTIONS

John has a paper strip of length 6 cm. He cuts this strip in smaller strips of length 2 cm

each. You know that he would get 6 ÷ 2 =3 strips.