multiply and divide fractions?

Question

i really thought i knew how, but apparantley i done. how do you multiply and add fractions. for example: 16/6 and 12/6. yes, please leave them improper..

Answer 1

16/6 + 12/6 = 28/6
SIMPLY ADD NUMERATORS IF THEY HAVE THE SAME DENOMINATOR... AND SUBTRACTION AS WELL
if the given fractions aren't the same denominator,,, get the least common denominator....

IN MULTIPLICATION: you dont need to have the same denominator in order to do the opertaion simply multiply the numerator and the denominator or cross multiply
example: 10/5 X 5/9 = 50/45 simplify 10/9

IN DIVISION: reverse the second fraction and proceed to multiplication...
example: 6/5 divided by 3/4
reverse the 2nd fraction w/c is 3/4 and use multiplication
6/5 x 4/3 = 24/15 or simplify 8/5

Hope it helps! Good Luck!

Answer 2

OK - first let's add them and then we'll multiply.

16/6 + 12/6 = 28/6
(since the denominator is the same, you can add the numerators)

Now let's multiply

16/6 * 12/6 = ? ( well, lets reduce and cancel out factors)

8/3 * 2/1 = 16/3

(for multiplication, it is simply multiply the numerators and then multiply the denominators).

I left the answers as improper, if you go to mixed, the answers would be addition = 4 4/6 or 4 2/3. The multiplication would be 5 1/3. Hope this helps.

Answer 3

To multiply these:

Cross-divide the numerators and denominators if you can.
Then multiply the numerators to get the numerator of the answer. Multiply the denominators to get the denominator of the answer.

16/6 * 12/6 Cross divide 16 and 6 by 2 to get 8/3.
Cross divide 12 and 6 by 6 to get 2/1.

8/3 * 2/1 = 16/3

To divide the same numbers, invert the second fraction and then multiply.
16/6 divided by 12/6
16/6 * 6/12 Cross divide the 6 and 6 by 6.
16/1 * 1/12 Cross divide the 16 and 12 by 2.
8/1 * 1/6 Cross divide the 8 and 6 by 2.
4/1 * 1/3 Now multiply.
= 4/3

Answer 4

when you add fractions, you have to get both of them to have the same denominator and then add numerators (same with subtraction). 16/6 and 12/6 have the same denominator already. so the answer is (16+12)/6 == 28/6. then simplify to 14/3.

when you multiply fractions, just multiply the numerators, and multiply the denoms.
16/6 x 12/6 = (16x12) / (6x6)

when you divide fractions (you asked for division in your title), you take the reciprocal of the second fraction and multiply.
(16/6) / (12/6) = (16/6) x (6/12) = 16/12 = 4/3

Answer 5

16/6 + 12/6 = (16+12)/6 = 28/6 = 4 4/6 = 4 2/3

16/6 * 12/6 = (16*12)/(6 * 6) = 192/36 = 5 12/36 = 5 1/3

16/6 / 12/6 = 16/6 * 6/12 = 16/12 = 1 4/12 = 1 1/3

I have a grudge against improper fractions...

Answer 6

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