ISEE Lower Level Math : How to find the part from the whole

Study concepts, example questions & explanations for ISEE Lower Level Math

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Example Questions

Example Question #154 : Isee Lower Level (Grades 5 6) Mathematics Achievement

What is half of 28 ?

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number. So, in the problem

half of 28

we will first write half as a fraction.  We know that half can be written as .  So,

 of 

 

Now, we can multiply.  We get

To multiply, we need to write 28 as a fraction.  We know we can write whole numbers as fractions over 1.  So, we get

Now, we can multiply straight across.  We get

 

Therefore, half of 28 is 14.

Example Question #155 : Isee Lower Level (Grades 5 6) Mathematics Achievement

What is half of 12 ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.

Let's look at the problem.

half of 12

We will first write half as a fraction.  We know half can be written as .  So, we get

 of 

Now, we will multiply them together.  So, we write

To multiply, we will write 12 as a fraction.  We know that whole numbers can be written as fractions over 1.  So, we get

Now, we will multiply straight across.  We get

 

Therefore, half of 12 is 6.

Example Question #71 : Whole And Part

What is  of  ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So, in the problem

 of 

we will write it like

Now, to multiply, we will write 27 as a fraction.  We know that whole numbers can be written as fractions over 1.  So, 

Now, we will multiply straight across.  We get

 

Therefore,  of  is .

Example Question #72 : Whole And Part

What is  of  ?

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.

So, in the problem

 of 

we can write it like this:

Now, we will write 32 as a fraction.  We know that whole numbers can be written as fractions over 1.  So, we get

Now, we can multiply straight across.  We get

 

Therefore,   of  is .

Example Question #73 : Whole And Part

What is  of  ?

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number. 

So, in the problem

 of 

we can re-write it as

Now, to multiply, we will write 24 as a fraction.  We know that a whole number can be written as a fraction over 1.  So, we get

Now, we can multiply straight across.  We get

 

Therefore,   of  is .

Example Question #74 : Whole And Part

What is  of  ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number. 

So, in the problem

 of 

we can re-write it as

Now, to multiply, we will write 63 as a fraction.  We know that whole numbers can be written as fractions over 1.  So, we get

Now, we can simplify before we multiply to make things easier.  The 7 and the 63 can both be divided by 7.  So, we get

Now, we can multiply straight across.  We get

 

Therefore,   of  is .

Example Question #75 : Whole And Part

What is  of  ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.

So, in the problem

 of 

we can write it like this:

Now, we must write 75 as a fraction.  We know that a whole number can be written as a fraction over 1.  So, we get

Now, we can multiply straight across.  We get

 

Therefore,  of  is .

Example Question #76 : Whole And Part

What is  of  ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So, we get

 

 

 

 

 

 

Therefore,  of  is .

Example Question #77 : Whole And Part

What is  of  ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole number, we will multiply the fraction by the whole number.  So, we get

 

 

 

 

 

 

Therefore,   of  is .

Example Question #78 : Whole And Part

What is half of 36 ? 

Possible Answers:

Correct answer:

Explanation:

To find a fraction of a whole, we will multiply the fraction by the whole number.

 

Now, we know "half" is the same as .  So, we get

 

 

 

 

 

 

Therefore, half of 36 is 18.

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