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If their denominators are different then find their lowest common denominator by means of their lowest common multiple remembering to adjust their numerators accordingly before adding or subtracting.

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11y ago

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What are the rules for adding fractions?

Ensure that the denominators are the same when adding or subtracting fractions.


What are the rules for adding subtracting multiplying and dividing fractions?

no answer


What are the rules for subtracting fractions?

You multiply the fractions until the denominators are equal. Then, you subtract.


What are the rules of the dissimilar fractions?

I assume you mean, with different denominators. If you want to add the fractions, subtract them, or compare them (determine which one is greater), you have to convert them to similar fractions (fractions with the same denominator) first. Converting to similar fractions is not necessary, and usually doesn't even help, if you want to multiply or divide fractions.


What is the rules for algeraba for subtracting negatives?

Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.


What are the rules in adding and subtracting polynomial?

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Rules of adding and subtracting similar fractions?

If the denominators are the same, just add or subtract the numerators. For example, 2/7 + 3/7 = 5/7. am i right?


Who made the rules for adding and subtracting integers?

David Missoula's


How are adding subtracting decimals different from multiplying them?

They aren't. The rules are the same as those for adding/subtracting or multiplying integers. Just be careful of the decimal point's location.


Why do you change mixed numbers to improper fractions before multiplying and dividing?

Because common denominators allow adding and subtracting of numerators. Improper fractions also have simplified rules over mixed numbers when performing multiplication and division.


How are adding and subtracting integers related to adding and subtracting other rational numbers?

Adding and subtracting integers is a specific case of adding and subtracting rational numbers, as integers can be expressed as rational numbers with a denominator of 1. The fundamental rules for adding and subtracting integers—such as combining like signs and using the number line—apply similarly to other rational numbers, which can include fractions and decimals. The operations are governed by the same principles of arithmetic, ensuring that the properties of addition and subtraction, such as commutativity and associativity, hold true across both integers and broader rational numbers. Thus, mastering integer operations provides a solid foundation for working with all rational numbers.


What are the three rules of adding and subtracting decimals for 5 grade?

line up the decimal point when your adding and subtracting. add annex a zero when you have extra number. sometimes you can use a number line.