Think of it like this....
If we are dividing fractions and we set those fractions up in a fraction such as,
2/3
___
3/4
then how would we get rid of the bottom fraction? We would multiply it by the reciprocal 4/3, so that it's now equal to one, and then because we multiplied the bottom by 4/3, we must also multiply the top by 4/3. So now we have...
2/3 * 4/3
_______
3/4 * 4/3
= 8/9
___
1
= 8/9
That's why we multiply by the reciprocal of a fraction when dividing!
E2020 people this should be in your notes?
The reciprocal is one of two numbers whose product is 1; it is also called multiplicative inverse.
It is not just in fractions. In general, division can be defined as multiplication by the reciprocal. For example, dividing by 5 is the same as multiplying by 0.2. However, it is mainly in calculations with fractions that this is normally used as a practical way of doing the calculations.
That is the definition of reciprocal.
Reduce to breakpoint at that time your reciprocal will be equal to your product of fraction.
What is the inverse reciprocal of 0.01
2
Yes. One method for dividing fractions is to multiply the numerator fraction by the reciprocal of the denominator fraction.
Convert them to improper fractions.
There is very little that is unique about the process of dividing fractions. Multiply by the reciprocal.
It's easier to multiply the reciprocal.
This is because dividing by a number is the same as multiplying by its reciprocal.
When dividing fractions, take the reciprocal of the second fraction, and multiply the first fraction by the reciprocal of the second fraction. Example: (a/b)/(c/d)=(a/b)*(d/c)
A reciprocal is when you take the second fraction in a division problem and flip it Then change the sign to multiply. THIS ONLY WORKS WHEN YOU ARE DIVIDING FRACTIONS!
This is related to the fact that dividing by a number is the same as multiplying with the number's reciprocal.
Change the second fraction to its reciprocal. Multiply them.
Reciprocal just means that you flip the fraction... your fraction is -p/4 the reciprocal is 4/-p the reciprocal is extremely important when dividing fractions. because when you divide fractions you have to take the reciprocal of the bottom fraction and then multiply it to your top fraction to get your answer.
When dividing fractions, the denominators don't matter. Multiply the first fraction by the reciprocal of the second.
It is not just in fractions. In general, division can be defined as multiplication by the reciprocal. For example, dividing by 5 is the same as multiplying by 0.2. However, it is mainly in calculations with fractions that this is normally used as a practical way of doing the calculations.