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When multiplying mixed numbers do you have to multiply the whole numbers or just the fractions?
Wiki User
∙ 12y ago
More than that.
You need to multiply the whole number, the farctions AND cross multiply the whole numbers and the fractions. Then add together all the answers.
Thus,
23/4 * 56/7 = 2*5 + (3/4*6/7) + 2*6/7 + 3/4*5
Actually, it is far simpler to convert the mixed fractions to improper (top heavy) fractions, and then multiply the numerators together to give the numerator of the answer and multiply the denominators together to give the denominators of the answer.
Wiki User
∙ 12y ago
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How is multiplying mixed numbers different than multiplying fractions?
if you have mixed numbers you make them into improper fractions before you multiply
How to multiply mixed numbers?
First change the mixed numbers into improper fractions by multiplying the denominator and the whole number and add the product to the numerator in the mixed numbers and then multiply the numerators and the denominators and divide the numerator by the denominator of the product.
When multiplying two mixed numbers what do you do first?
First you change them into improper fractions. Then you multiply the numerator and the denamanator straight across. ;)
Why convert mix number to improper fraction when multiplying mix number?
It's much easier to multiply fractions than it is to multiply mixed numbers. Try either one some time.
Why do mixed numbers need to be turned into improper fractions?
It helps with adding and multiplying fractions sometimes. Its simpler to multiply 3/7 x 9/7 than 1 2/7 x 3/7.
How is multiplying mixed numbers different than multiplying fractions?
if you have mixed numbers you make them into improper fractions before you multiply
Is there a trick to multiplying mixed numbers?
you have to turn them into improper fractions before you multiply them.
How to multiply mixed numbers?
First change the mixed numbers into improper fractions by multiplying the denominator and the whole number and add the product to the numerator in the mixed numbers and then multiply the numerators and the denominators and divide the numerator by the denominator of the product.
When multiplying two mixed numbers what do you do first?
First you change them into improper fractions. Then you multiply the numerator and the denamanator straight across. ;)
How do you multipy mixed numbers by mixed numbers?
Change each mixed fraction to an improper fraction. Do this by multiplying the denominator by the whole number next to the fraction and then adding the numerator to the product you get. Once you do this, multiply fractions normally.
How do you Multiply three or more mixed numbers.?
Convert them to improper fractions and proceed the same way you would multiply two fractions.
Why convert mix number to improper fraction when multiplying mix number?
It's much easier to multiply fractions than it is to multiply mixed numbers. Try either one some time.
How do you multiply mixed numbers by fractions?
Convert the mixed number to an improper fraction and proceed normally.
Why do mixed numbers need to be turned into improper fractions?
It helps with adding and multiplying fractions sometimes. Its simpler to multiply 3/7 x 9/7 than 1 2/7 x 3/7.
How do you multiply negative mixed numbers?
Convert them to improper fractions and proceed. The answer will be positive.
How do you multiply fractions with whole numbers and mixed numbers?
The question is ambiguous. Do you want to know how to multiply a fraction by a whole number, as well as by a mixed number? Or are you asking how to multiply a whole number by a mixed number and express the product as a fraction? Or what?
When multiplying mixed numbers and fractions does changing the order of the factors change the product?
No. The commutative and associative laws are valid for any real numbers.
