In the set of consecutive integers from 21 to 46 , inclusive, there are 2 integers that are multiples of both 2 and 7. How many integers in the set are mulitples of neither 2 nor 7 ?.

The answer is 11 but
Please show me how to do it

Considering the set:

In order to find the numbers that are not multiples of 2, eliminate the even.

Now eliminate the multiples of 7.

So, you got the 11 numbers.

Note: The multiples of both 2 and 7, are 28 and 42.

60

step-by-step explanation:

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b