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Best shown with an example.
2 2/3 X 4 1/5
#1 Convert to improper(top heavy) fractions.
8/3 X 21/5
#2 cancel down (reduce) were possible. In this case by '3'
8/1 X 7/5
#3 multiply the numerators(top) and multply the denomiaotor(bottom) and place the numerator over the denomiator
56/ 5
#4 Convert to a mixed fraction
11 1/5 The answer. !!!
Hope that helps!!!!
lenpollock
Wiki User
∙ 12y agoTo multiply fractions, multiply the numerators by the numerators, and the denominators by the denominators, and then (if possible) simplify the resulting fraction. For example, 2/3 x 4/5 = 8/15
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When do you cross multiply to solve an equation?
When doing fractions, you may cross multiply.
How do you find missing fractions?
U can multiply
How do you multiply fractions with uncommon denominators?
To multiply fractions all you do is multiply the numerators and the denominators separately eg: 4/7 x 6/11 = 24/77. The "commonality" of denominators has no relevance.
When do you cross multiply in dividing fractions?
To divide fractions, turn the second one over - that is, swap its numerator and denominator - and multiply. Nothing else is necessary. You cross multiply when you have a proportion, that is when you have two ratios that are equal.
When you multiply fractions why do you multiply the fractions strait across?
This has the effect of producing a denominator in the answer that has each of the original denominators as factors. You don't have to worry about simplifying the fractions before multiplying. Of course, you may have to simplify after multiplying. There's no way out.
What does it mean to multiply and divide fractions?
multiply and divide fractions!-.-
How can you use models to multiply fractions?
No, you cannot use models to multiply fractions!!
How do you find volume with fractions?
You multiply the fractions
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.
Do you multiply the denominator when you multiply fractions?
Yes you do.
Why do you invert fractions?
When you divide by fractions, you invert and multiply.
When you multiply fractions do you multiply the denominator?
yes. you multiply the numerator and denominator
When you multiply fractions do you multiply the bottom numbers too?
Yes.
Do you ever multiply a fraction?
Yes, there are times when you multiply fractions.
How can one multiply fractions without a calculator?
You multiply the numerators across and put that as the numerator of your answer, then multiply the denominators of the fractions across the put that as the denominator of your answer. It is very easy.
What is a definition for ordering fractions?
to order fractions you can cross multiply two fractions at a time or you can convert all the fractions into decimals.
How do you get a fraction of another fraction?
To get a fraction of another fraction you have to multiply the fractions. To multiply fractions, just use this simple algorithm: Step 1-Turn all whole numbers and mixed numbers into improper fractions. Step 2-Multiply the numerators of the 2 fractions. The answer to that problem will be the numerator of the answer. Step 3-Multiply the denominators of the 2 fractions. The answer to that problem will be the denominator of the answer. Step 4-Reduce.
