Working on a math problem cant get right answer?

Question

(-9/11)(-9/11)(1/3)(1/3)(1/3)(1/3) =

The book says the answer should be 27/49 I cant get right answer ?

Answer 1

ans: 1/121....

plz check it in class....there may b some..misprinting

Answer 2

(-9/11)(-9/11)(1/3)(1/3)(1/3)(1/3)

= (81/121)(1/9)(1/9)

= 81/9801

= 1/121

Answer 3

multiply all the numerators, and multiply all the denominators:

(-9)(-9)/11*11*3*3*3*3

81/121*81

1/121

Either the book has a misprint, or you mistyped the problem in your question.

Answer 4

27/49 is incorrect. The answer is 1/121

Answer 5

simple multiplication 1/121

Answer 6

1/121

Answer 7

When you see repetitions in an expression, it'll be good to group them together 1st:

(-9/11)(-9/11)(1/3)(1/3)(1/3)(1/3)

= (-9/11)(-9/11) * (1/3)(1/3)(1/3)(1/3)

(Remember that negative no. times negative no. = positive no.)

= (9*9)/(11*11) * 1/(3*3*3*3)

= 81/121 * 1/81

(cancel out similar numbers that has one at the top and one at the bottom):

= 1/121

In which case your book's answer is wrong.