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How To get rid of radicals in the denominator by multiplying the fraction by a helpful form of?
Wiki User
∙ 6y ago
If there is only the radical, sqrt(b), in the denominator, the form of the fraction is sqrt(b)/sqrt(b).If the denominator is of the form a + sqrt(b) then the form of the fraction is [a - sqrt(b)]/[a - sqrt(b)].
It is also possible to use [-a + sqrt(b)]/[-a + sqrt(b)], and this form may be preferred is a^2 < b.
Wiki User
∙ 6y ago
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Why is it helpful to write a fraction as a percent?
It is not always helpful.Some people may find it helpful when comparing fractions. By converting them into percentages they are made into like fractions: all with the denominator 100.
Do you need common denomonators when mutiplying fractions?
No, you do not need to find a common denominator when multiplying fractions. To multiply fractions, you simply multiply the numerators together and the denominators together. However, finding a common denominator can be helpful when simplifying the resulting fraction.
Why is estimating not helpful when multiplying decimals?
It can be very helpful, so the question is inappropriate.
What is estimating NOT as helpful when multiplying very small numbers?
It is - if you use appropriate rounding. Rounding does not have to be to whole numbers.
Why do you multiply and divide functions?
Multiplying and dividing functions can be useful in various mathematical applications. When multiplying functions, it allows you to combine two or more functions to create a new function that represents their combined effects. This is commonly used in algebraic manipulation and solving equations. Dividing functions, on the other hand, allows you to find the ratio or proportion between two functions, which can be helpful in analyzing relationships or comparing quantities in different contexts.
To get rid of radicals in the denominator of a fraction you should rationalize the denominator by multiplying the fraction by a helpful form of?
1
Why is it helpful to write a fraction as a percent?
It is not always helpful.Some people may find it helpful when comparing fractions. By converting them into percentages they are made into like fractions: all with the denominator 100.
Do you need common denomonators when mutiplying fractions?
No, you do not need to find a common denominator when multiplying fractions. To multiply fractions, you simply multiply the numerators together and the denominators together. However, finding a common denominator can be helpful when simplifying the resulting fraction.
Why is estimating not as helpful when multiplying very small numbers?
It is not as helpful when multiplying very small numbers because the numbers are going to be very east to answer. That is why estimating is not as helpful when multiplying very small numbers.
How can common factors help determine a fraction?
by dividing or multiplying the numerator and the denominator of a fraction with the same numberex:* 1/2 = (1 x 5)/(2 x 5) = 5/10(multiples both numerator and denominator with 5)1/2 and 5/10 are equivalent fractions* 14/35 = (14:7)/(35:7) = 2/5(divide both numerator and denominator with common factor of 14 and 35)14/35 and 2/5 are equivalent fractions
Why is estimating not helpful when multiplying decimals?
It can be very helpful, so the question is inappropriate.
If the numerator is bigger than the denominator what is the fraction called?
It's called an improper fraction.
Why is writing in fraction helpful?
It is helpful some of the time, but not at others.
What is 3 8th's of 40?
The answer is 15 because 40 divided by 8 = 5 and 5 multiplied by 3 = 15. Basics: step 1.divide the whole number by the denominator of the fraction step 2. Multiply the answer by the numerator of the fraction The related link below may be helpful:
What are fraction that have same denominator called?
They are called like fractions.In order to add or subtract fractions you will usually need to convert them to like fractions. Then you simply add or subtract the numerators (as required) to form the numerator of the answer. The same (or common) denominator is the denominator of the answer. You may need to simplify the resulting fraction.
When dividing fraction it is most helpful to change a mixed number into a?
improper fraction
When dividing a fraction it is most helpful to change a mixed number into a?
improper fraction
