answersLogoWhite

0


Best Answer

A reciprocal is useful to know in math because to divide fractions, you must multiply by the second fraction's reciprocal. For example:

2/3 divided by 4/7

is the same as

2/3 times 7/4.

User Avatar

Wiki User

13y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why is it useful to know what a reciprocal is in math?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Continue Learning about Other Math

Find the reciprocal 2 7?

Ah, what a happy little math question we have here! To find the reciprocal of a number, you simply flip it upside down. So, the reciprocal of 2 is 1/2 and the reciprocal of 7 is 1/7. Remember, there are no mistakes in math, just happy little accidents!


What is the reciprocal of 2 and 4?

Well honey, the reciprocal of a number is just 1 divided by that number. So, the reciprocal of 2 is 1/2, and the reciprocal of 4 is 1/4. Simple math, darling.


What is the reciprocal of 4.5?

Oh, dude, the reciprocal of 4.5 is just 1 divided by 4.5, which equals 0.222... or you know, 2/9 if you're feeling fancy. So, like, if you ever need to divide something by 4.5, just multiply it by 0.222... instead. Math, man, it's wild.


What does reciprocal mean in math?

A reciprocal is 1 divided by a number. So, the reciprocal of x is 1/x. For example: The reciprocal of 2 is 1/2 is 0.5 The reciprocal of 9 is 1/9 is 0.111111111111 The reciprocal of 0.5 is 1/0.5 is 2. To divide one by a number is called 'taking the reciprocal.' If you have a fraction, taking the reciprocal is fairly easy: simply 'flip' it. I.e., put the numerator in the denominator, and the denominator in the numerator. For example: The reciprocal of 2/3 is 3/2 The reciprocal of 7/8 is 8/7 The reciprocal of 1/4 is 4 (/1). The technical mathematical definition of the reciprocal of x is: "The number which, when multiplied by x, gives one."


What does reciprocal math term mean?

The reciprocal of any non-zero number is one divided by that number. The reciprocal of 0 is not defined. For example, if R(x) represents the reciprocal of x, then R(6) = 1/6 R(5/7) = 1 / (5/7) = 1*(7/5) = 7/5 R(x) = 1/x

Related questions

What does reciprocal mean in math terms?

What does reciprocal mean in fractions


What is a sentence for reciprocal?

-My teacher likes for us to use math terms, such as reciprocal, in class.


What does 1over a mean in math?

1/a is the reciprocal of a


What math is in banking?

Interest and percent I know. Proportions are useful for finding that.


What does flip mean in math?

Flip is the technical term for a reciprocal. (The reciprocal of 3/4 is 4/3)


Why do you teach math?

Math is very useful. You may not realize it but you are always using math. From counting how many eggs to cook or paying for something you'll always need it. I personally don't love math but i know it will be extremely useful in my future.


Find the reciprocal 2 7?

Ah, what a happy little math question we have here! To find the reciprocal of a number, you simply flip it upside down. So, the reciprocal of 2 is 1/2 and the reciprocal of 7 is 1/7. Remember, there are no mistakes in math, just happy little accidents!


Why is the commutative property useful in math?

Math sucks c:


Another word for flip in math?

Reflect.


Does an organic chemist need to know math?

yes, math is useful. But you probably won't need higher then 1st year calc


What is the definition of receprocal in a math term?

The reciprocal is the "multiplicative inverse". This means 1 divided by the number. The reciprocal of 2 is 1/2, the reciprocal of 5 is 1/5, etc.


What is receprocal in math?

The reciprocal of a number is: 1 divided by the number. Example: the reciprocal of 2 is 1/2 and 5 is 1/5..