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What are the rules for adding and subtracting positive and negative fractions with different denominators?
Wiki User
∙ 15y ago
first must find Least Common Denominator
http://www.loisterms.com/lois21.htm
First of all, if you want to know about adding fractions, check out "How to Add Fractions". Be sure to follow the math examples carefully. To subtract fractions, follow the same steps as for adding, except subtract where you would add. Now about those positive and negative signs. The rules are the same whether you are working with integers or fractions. I will give you a method of learning the rules for the signs that has worked for many other students. Copy off this "Rules for Integers" chart and paste it on a large index card. Put the card in your math book or folder and refer to it often while you are doing your homework. If you keep using the card, you will get better with the signs.
Wiki User
∙ 15y ago
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What will be the difference when subtracting two integers with different signs?
Subtracting: Positive - Negative = Positive Negative - Positive = Negative No that is not the way it goes. It is positive+negetive=either counting on which integer is bigger negative+negative=positive positive+positive=positive positive x negetive=negative negative x postitve= negative negative/positive=negative positive/negative=negetive thanks The top is right though because subtracting a negative is like adding so you could never get a negative and subtracting from a positive from negative will always be a negative. The question was for integers with different signs so you don't need to do "positive + positive"
How do you solve -4 -12?
- 4 - 12 = -16 You are subtracting from an already negative number making it more negative.
What do you need to be careful of when subtracting rational expressions?
see the signs if is negative or possitive
What do you do when subtracting a positive and a negative?
If you subtract a negative from a positive, add both of their absolute values. If you subtract a positive from a negative, add both of their absolute values and multiply by negative one.
How do you add and subbtract positive and negative integers?
When adding negative integers, you subtract. (2+-1=1) When subtracting negative integers, you add. (2--3=5)
How do you add two negative mixed numbers and one positive mixed number?
Convert them to improper fractions with common denominators and proceed with the adding and subtracting.
How do you subtract fractions with negative fractions?
Subtracting a negative fraction is the same as adding its positive equivalent.
How are adding and subtracting fractions similar?
Subtracting a fraction is the same as adding its negative.
Can negative numbers be in a fraction?
Yes, negative numbers can be in a fraction. Fractions can have negative numerators or negative denominators, or both. For example, -1/2, 3/-4, and -5/-7 are fractions that include negative numbers.
Subtraction with negative fractions?
Subtracting a negative number is the same as adding the positive version. So 3- (-4) = 3+7. The same thing is true of all numbers, including fractions. So just add the fractions like you would normally do.
When subtracting a negative and a positive your answer would be a positive?
If you are subtracting the negative from the positive, the answer will be positive. If you are subtracting the positive from the negative, the answer will be negative.
What are is the rule for subtracting fractions with negative signs?
the same as adding whole numbers. two negatives = negative. two positives = positive, and a negative and positive depends on the absolute value of the greater number.
What will be the difference when subtracting two integers with different signs?
Subtracting: Positive - Negative = Positive Negative - Positive = Negative No that is not the way it goes. It is positive+negetive=either counting on which integer is bigger negative+negative=positive positive+positive=positive positive x negetive=negative negative x postitve= negative negative/positive=negative positive/negative=negetive thanks The top is right though because subtracting a negative is like adding so you could never get a negative and subtracting from a positive from negative will always be a negative. The question was for integers with different signs so you don't need to do "positive + positive"
Why subtracting a negative number is equivalent to adding a positive number?
equivalent to subtracting a negative
What is the rule for subtracting negative numbers?
The rule for subtracting negative numbers is 'when you are subtracting a negative number from a positive or negative, you must always add it.'Example: 3--3 = 3+3 = 6
How is adding integer and subtracting integer related?
They are different because they both heve negative and positive.
How is adding to negative integers the same as and different from subtracting two positive integers?
No- adding negative numbers is like adding positive numbesr , except the answer is negative.
