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Earn +20 ptsQ: Is it necessary to cross multiply when multiplying fractions?
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When multiplying fractions do you multlply to the side or cross multiply?
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!
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.
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