Question

What fraction of numbers from 2 to 12 are composite numbers

Answer 1

Composite numbers from 2 to 12 are 4,6,8,9,10,12.

So, in fraction it may be written as 6/11.

Given:

• Numbers from 2 to 12.

To find:

• What fraction of numbers from 2 to 12 are composite numbers.

Solution:

Composite numbers: These are the numbers having atleast two or more prime factors.

Thus, prime numbers can never be composite numbers.

Step 1:

Write total numbers from 2 to 12.

These are

2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12

In counting these are total 11 numbers.

Step 2:

Write composite numbers.

As we know that prime numbers are 2,3,5,7,11

So,

rest of the numbers are composite numbers,

Composite numbers are 4,6,8,9,10,12

In counting these are 6.

Step 3:

Write fraction.

Out of 11 numbers 6 are composite numbers, so

in fraction ,it is 6/11.

Thus,

6/11 fraction of numbers from 2 to 12 are composite numbers.

Learn more:

1) LCM of smallest two digit composite number and smallest composite number is

https://brainly.in/question/13229836

2) Explain why 7x11x13x17 + 17 is a composite number.

https://brainly.in/question/4023044

Answer 2

Answer:

Composite numbers are = 4,6,8,9,10,12

So fraction is 6/11