Grade 4 - Progress in Mathematics

Update your skills. See page 13.

Find Part of a Number

9-10

To find a fractional part of a number:


Dividethe whole number by the denominator.


Multiplythe quotient by the numerator.


^13 
of 12: 12  3  4 1  4  4 So 
^13 
of 12 4.

^23 
of 12: 12  3  4 2  4  8 So 
^23 
of 12 8.

Of the kittens, 4 are white and 8 are gray.

There are 12 kittens at the animal

shelter. How many kittens are white?

How many kittens are gray?

To find how many of each,

use the circle graph to find

the fractional parts of the whole.

Since the graph shows

that 


1

3 
of the kittens

is white, find 


1

3 
of 12.

Divide 12 into 3 equal parts, or thirds.

12  3  4 How many are in two thirds?

There are 4 in each third. 2  4  8

So 


1

3 
of 12 ^4 So 

2

3 
of 12 ^8

Find the part of each number. Yo u may draw a picture.

1. 
   ^15
   of 15 2.
   ^13
   of 9 3.
   ^12
   of 14 4.
   ^18
   of 40


2. 
   ^14
   of 24 6.
   ^19
   of 36 7.
   ^17
   of 42 8.
   ^15
   of 50


3. 
   ^16
   of 30 10.
   ^16
   of 24 11.
   ^18
   of 16 12.
   ^12
   of 8

2

3

Gray

1

3

White

Kittens at the Shelter

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