"Cross multiplying" has a couple of different meanings, and I'm not sure which one you exactly mean. Can you give an example of one that goes "right" and one that goes "wrong"?
http://answers.yahoo.com/question/index?qid=20090817223...
Sometimes when you subtract fractions of any type, you will need to simplify your answer. What that really means is that you must show your results in the "best" form possible. As a result, here are a few more things to think abo...
http://www.blurtit.com/q3486228.html
We actually make a folder game and each game must have so many questions using adding/subtracting fractions. Example ~ Object of game would be to mover around a board by answering questions. The questions are in word problems and the studen...
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Adding and subtracting fractions are not as hard as some make them out to be. You need to take the denominator, or the bottom number, and find a common demoninator. Once you have the common demoninator, you are able to add and subtract any ...
http://answers.ask.com/Computers/Other/how_do_you_add_a...
・ 1 Rename the whole number by subtracting one from the whole number and rewriting the whole number as... ・ 2 Write the whole number from the mixed number (5 4/4) in step one. Continuing with our same working... ・ 3 Subtract the numerator (...
http://www.ehow.com/how_2363806_subtract-fractions-from...
・ 1 Adding: To add fractions, you make both the denominators (the bottom part of the fraction) the same... ・ 2 Multiplying: To multiply fractions, you multiply both denominators and both numerators. ・ 3 Dividing: To divide fractions, switch...
http://www.ehow.com/how_4547146_add-subtract-multiply-d...
A fraction is a part of a whole. It is written with a number on the top and a number on the bottom. The top number is called a numerator and the bottom number is called a denominator. In order to... Tags: fractions denominators numerator lc...
http://www.ehow.com/tag/numerator/?ref=Track2&utm_s...