1. Identify the numerator and denominator of the fraction 5/19. 2. What fraction of the first twelve natural numbers are prime numbers? few...

. Identify the numerator and denominator of the fraction
5/19.

5 is numerateor

19 is
denominator.

2. What fraction of the first twelve natural
numbers are prime numbers?

First 12 natural numbers are 1
t,2,3,...12.

The primes within 12 are 2,3,5,7,11 are the  5
primes.

So 5/12 are the fraction of primes within 12  first
natural numbers.

few
more.

 3. Find two factors of 6 whose sum is
5.

 3*2  = 6 and  3+2 = 5. So 2
factors.

4. Find the greatest common factor of 66 and
68.

66= 2*3*11 and 68 =2*2*17
.

 So 2 is the grearest common
factor.

4. The manufacturer of a certain machine claims
that the machine will produce 6 parts in 8 hours. At the end of a 40 hour work week in
which the machine was in use the entire 40 hours, a supervisor noted that the machine
had produced 30 parts. Does this production rate dispute the manufacturer's
claim?

 Yes.. The machine @ 6product per 8 hr, should
produce (6/8)40 = 30 and it did produce 30
products.

5. Simplify
-21/-66

6.Write the fraction  as an equivalent fraction
with a denominator of 36.

 4/9 = x/36. So x =
4*36/9 = 16

So 4/9 =
16/36

7. Multiply. Be sure to
give the answer in simplest form.

No questions to answer
under this number.