Wednesday

August 27, 2014

August 27, 2014

Posted by **Marysvoice** on Wednesday, January 23, 2008 at 8:02am.

Do I need a Common denominator?

Would it be 121 as 11x11 is 121?

Do I then multiply the numeratos- -9+3w by 11 or do I do the addition of -9+3w for-12w?

- Algebra -
**Reiny**, Wednesday, January 23, 2008 at 8:23amNo, in division and multiplication you do not need a common denominator.

Remember that when you divide by a fraction you instead multiply by the reciprocal of that fraction

so...

(-9+3w)/11 divided by (25w-75)/121

=(-9+3w)/11 * 121/(25w-75)

=3(-3+w)/11 * 121/(25(w-3))

=33/25 , with x not equal to 3

**Related Questions**

math - What is the square root of 121? show work thanx I memorized this long ago...

algebra 2 - evaluate if possible 1. square root -121 A not a real number 2. ...

Help - I am trying to do this problem and this is what I have got so far Divide...

algebra - find center and radius of circle (x-6)^2+(y+9)^2=121 -(x-6)^2 -(x-6)^2...

Calculus - This is a large problem, sorry for the trouble. if f(x) = sqrt(x^3 + ...

Geometry - The area of a square is 121 sq feet. What is the length of its sides...

algebra - Find the prime factorization for the integer 121 this is what I think ...

probability - (a) Find P(121 ¡Ü X ¡Ü 139), the probability that a randomly ...

MATH - There are 3 gardens below. They are all joined. Garden A and C are are ...

math.help - am i correct on this radical (-121) the radicand is negative 121 ...