i need help, i am helping a student and i need 2 grade her paper?

Question

i need 2 know the answers 2:
3\4 divided by 1\4
5\9 divided by 1\9
3\5 divided by 1\4
1\3 divided by 1\6
and 8\15 divided by 1\3

Answer 1

1. (3/4) / (1/4)

*Rule - you can't divide fractions...

First: multiply the 1st fraction with the reciprocal (flip the 2nd fraction) of the 2nd fraction.

(3/4)(4/1)

Sec: combine the fractions...

(3*4)/(4*1)
12/4 = 3

2. (5/9) / (1/9)

*Rule - you can't divide fractions...

First: multiply the 1st fraction with the reciprocal (flip the 2nd fraction) of the 2nd fraction.

(5/9)(9/1)

Sec: combine the fractions...

(5*9)/(9*1)
45/9 = 5

P.S. Follow the same format from #1 & #2 to solve the rest of the problems.

Answer 2

To divide by a fraction turn the 2nd one upside down and multiply:

3/4 times 4 = 12/4 = 3

5/9 times 9 = 5

3/5 times 4 = 12/5 = 2 and 2/5

1/3 times 6 = 2

8/15 times 3 = 24/15 = 1 and 3/5

Answer 3

Thing to know to answer these: Dividing by a number is the same as multiplying by its reciprocal.

(a/b) / (c/d) = (a/b) * (d/c)

So...

(a) (3/4)/(1/4) = (3/4)*(4/1) = 3
(b) (5/9)/(1/9) = (5/9)*(9/1) = 5
(c) (3/5)/(1/4) = (3/5)*(4/1) = 12/5 = 2 + 2/5
(d) (1/3)/(1/6) = (1/3)*(6/1) = 2
(e) (8/15)/(1/3) = (8/15)*(3/1) = 8/5 = 1 + 3/5

Answer 4

3/4 divided by 1/4 is 3/4 multiplied with 4/1 = 3
5/9 multiplied by 9... 5
3/5 multiplied by 4= 12/5
1/3 multiplied by 6=2
what faculty is the student at , and wich year, i'm just curious... i did that in ... 5th grade

Answer 5

1. 3
2. 5
3. 12/5
4. 2
5. 8/5

Answer 6

Now I believe I have seen yet another way to ask people to do your homework for you. This is basic grade school math. Learn it.

Answer 7

3
5
12/5=2.4
2
8/5=1.6