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When comparing or simplifying fractions.

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โˆ™ 2009-10-22 02:12:25
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Q: When do you use cross multiplication?
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What is the correct term for cross multiplication?

Cross multiplication IS the correct term!


Is cross reduction a math word?

Cross reduction does exist. We use it when we want to make large multiplication fractions simpler =)


What does Cross multiplication mean?

Cross multiplication is when you multiply the denominator of a fraction by the numerator of another fraction. Before you cross multiply you want to see if you can simply the fractions.


Who invented cross multiplication?

Maths!


What is the inherent meaning and justification of cross-multiplication as it applies to solve an inequality?

What is the inherent meaning and justification of cross-multiplication as it applies to solving an inequality


Which operatoins are not commutative?

Subtraction, division, cross multiplication of vectors, multiplication of matrices, etc.


How do you use proportions using cross multiplication to find 2.80?

2.80 is 2.80: you do not need to ise proportions or anything to "find" it!


How do you solve an equation using unit rates with variablesWhat steps do I needDo I use cross multiplication?

The answer will depend on the detailed nature of the question.


What is the answer when you use multiplication?

The answer to a multiplication question is called the "Product".


Is two fourths equal to three sixths?

yes...to know if it is equal use cross multiplication..if the answer is the same as the product of the denominetor to the numerator,it is equal


How do you use division to solve a multiplication equation?

How do you use division to solve a multiplication equation?Answer this question…


Solving equations cross multiplication?

x/6=7/12


128 is what percent of 640?

20%. To get to this answer I used the cross multiplication property.


How do you use the word multiplication in a sentence?

We had to take a multiplication test today.


Is three fourths more one half?

Yes it is. If you use cross multiplication, 3/4 equals 6, while 1/2 equals 4.


How do you know if two fraction are equivalent?

cross multiplication results in same number


Do architects use math operations of multiplication and and division in their work?

Yes they use multiplication and division to measure geometry


What does flag of Scotland look like?

Blue background with a white 'multiplication' cross. It's known as the St Andrews Cross or the Saltire.


When can you use multiplication?

You can use it at any time.


Where do you use multiplication?

in school, i used multiplication in my planner,a print out or a calculator to help me know it


What property of multiplication do you use with money?

All the properties of multiplication may be used with money.


What does the red cross on union jack mean?

There are two red crosses on the Union Flag. The 'plus' cross is from the English flag and the 'multiplication' crass is from the Ulster flag.


How can you use multiplication or division to solve an inequality?

you can use it


How do you combine probabilities?

like for or we use + and for 'and' we use multiplication


Why do you use the Division Property of Equality to solve an equation with multiplication?

Because you need to use inverse operations and the opposite of multiplication is division.

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