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Why do you have to find a common denominator?
Addition or subtraction of fractions require "like" fractions: that is, fractions with the same denominator.
What are the rules for fractions?
addition,subtraction,multiplication,division
Why when subtracting a negative number must you change the subtraction sign to an addition sign?
Because a negative negative is the same a a positive, and because of the definition of subtraction and addition.
Does a negative number plus a negative number equal a negative?
Yes it does. Because the it acts like subtraction, but since the positive, negative number scales run backwards like a mirror, subtraction is addition with two negative numbers.
How is math used by a restaurant manager?
Typically, addition, subtraction, multiplication, division, fractions and percentages.
How is subtracting fractions different from adding fractions?
In subtraction you take away rather than add. Also, addition is commutative, subtraction is not so the order of the numbers does matter for subtraction.
What Proper fractions that have the same denominator in addition or subtraction are called?
like fractions
How so you add and subtract negative fractions?
if both fractions are negative then add like normal then put a negative sign in front like this: -6/24 + -8/24 = - 14/24 now simplify. your answer is... -7/12 i hope this helped. (oh yeah, same thing with subtraction)
Why do you have to find a common denominator?
Addition or subtraction of fractions require "like" fractions: that is, fractions with the same denominator.
What are the rules for fractions?
addition,subtraction,multiplication,division
Why change mixed numbers to improper fractions?
For addition, subtraction, division and multiplication with other fractions
What rhymes with fractions?
action attraction subtraction
How are addition and subtraction mathematically connected?
Subtraction is the addition of a negative number.
What is the meaning of addition and subtraction of similar fraction?
Similar fractions are fractions with the same denominator. In order to add or subtract fractions they need to be similar.
Why when subtracting a negative number must you change the subtraction sign to an addition sign?
Because a negative negative is the same a a positive, and because of the definition of subtraction and addition.
What is 2 1 6 2 2 3 fractions?
It is subtraction
What is the purpose of finding an LCM?
It assists in the proper addition and subtraction of fractions.
