Whenever two or more fractions have different numbers on the bottom. 1/2 and 1/3 have unlike denominators.
Yes.
Yes
When you want to add or subtract unlike fractions.
I do not. Along with most English speaking people, unlike Americans, we call it maths.
Unlike normal languages, math does not change depending on where you are in the world. 2+2=4 in every nation.
You find the Greatest common factorAdd if needed to on math problem
because its just one of the rules of math :)
4
So you will be able to do basic division and multiplication, unlike your co-workers at Verizon's Call Center.
Well it is not really a math definition since simile is used in all of language not just math. A simile is when you compare two nouns that are unlike, with "like" or "as." For example, learning math is as fun as answering Answers.com questions. ( OK only maybe sine nothing is more fun than learning math)
A trinomial is a polynomial with three unlike terms, ex. a+b+c, a2+b2+c2
This question is easy. Since the denominaters can't be changed do 1 x 4 then put 4 over the four.