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When multiplying fractions do you multlply to the side or cross multiply?
Wiki User
∙ 12y ago
Multiplying fractions is the easiest operation you can do with them. Nothing complicated is required, just multiply the top two and the bottom two. Simple as that!
Wiki User
∙ 12y ago
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Is it necessary to cross multiply when multiplying fractions?
No.
What does cross multiplyng mean?
Cross-multiplying is when you have two fractions, and you multiply the numerator of each fraction by the other fractions's denominator. In other words, if you have two fractions a/b and c/d, cross-multiplying would be finding a*d and b*c. If a/b=c/d, then ad = bc.
Do you cross simplify in multiplying fractions?
65
Do you cross multiply with fractions?
yes
Why does cross multiplying with fractions work?
When cross multiplying, finding the product of the means and extremes, you are technically getting a common denominator that reduces out.
Is it necessary to cross multiply when multiplying fractions?
No.
What is an algorithm for multiplying fractions?
Multiply straight across and cross reduce when necessary
What does cross multiplyng mean?
Cross-multiplying is when you have two fractions, and you multiply the numerator of each fraction by the other fractions's denominator. In other words, if you have two fractions a/b and c/d, cross-multiplying would be finding a*d and b*c. If a/b=c/d, then ad = bc.
Do you cross simplify in multiplying fractions?
65
What is the difference between cross and across?
When you add or subtract fractions you cross multiply and when you multiply or divide fractions you across multiply.
When do you cross multiply to solve an equation?
When doing fractions, you may cross multiply.
Do you cross multiply with fractions?
yes
Why does cross multiplying with fractions work?
When cross multiplying, finding the product of the means and extremes, you are technically getting a common denominator that reduces out.
How can you tell if two fractions are equivalent?
Two fractions are equivalent if the fully simplified fractions are equal. If you can multiply the fraction with the smaller numerator and denominator by the same value to equal the second fraction. For example the fractions 3/4 and 9/12. The nominator and denominator, 3 and 4 have both been multiplied by 3 to equal 9/12. Cross multiply. If the products are equal, the fractions are equal. Cross multiplying means to multiply each numerator of one fraction with the denominator of the other fraction.
How do you cross simplify when multiplying fractions?
You look at the fractions sideways. Lets say that you had 3/4 and 2/3 and you were multiplying them. Put them on paper. Now you can see that 4 and 2 are compatible. What you do is: Cross out the four and put a 2. This means 2 goes into 4 twice. Then cross out the 2 and put a 1. This means that 2 goes into 2 once. Now you just multiply. Hope that answered your question!
Do you still cross multiply when you have like fractions?
You do not need to.
How do you figure out if two fractions are equal or not?
cross multiply
