A fraction as a divisor
A fraction is actually a division exercise! A result obtained from a division exercise is called a quotient and if it is incomplete, it will appear in the form of a fraction.
It is important to remember the rules:
The fraction line - symbolizes the division operation.
The numerator - symbolizes the number that is being divided (the divided number) - what must be equally divided among all (for example, cakes, pizzas, etc.)
The denominator - symbolizes the number that divides the numerator. (for example, the number of people that should be divided among)
How do we go from a division exercise to a fraction?
A division exercise can be converted into a fraction easily and quickly according to the above rules.
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Let's look at an exercise
Convert the division exercise 4:2= into a fraction
Solution:
In the numerator - put the number being divided: 4
Let's not forget the fraction line that will mark the division operation.
In the denominator - put the number that divides the numerator: 2
We get: 24
Obviously, we can simplify it and we get 2 (it was asked how many times the denominator fits into the numerator)
Another exercise:
Convert the division exercise 10:3= into a fraction
Solution:
In the numerator - put the number being divided: 10
Let's not forget the fraction line that will mark the division operation.
In the denominator -> put the number that divides the numerator-> 3
We get: 310
We can convert it into a mixed fraction and we get 331
Reminder: How to convert an equivalent fraction into a mixed number?
We will be asked how many times the denominator fits into the numerator without remainder
in our exercise 3 fits into 10: 3 times - this will be the number of whole numbers.
The denominator - will remain the same: 3
In the numerator - we will subtract the original numerator minus the result of the product between the number of whole numbers we obtained multiplied by the denominator. That is: 10−(3×3)=1
The final result: 1 will appear in the numerator.
Do you know what the answer is?
Now, let's see while we practice how to view the fraction as a division quotient.
Here is a question
In the kitchen, there are 6 delicious chocolate cookies.
Roberto, Mariana, and Lionel want to share them equally.
How many cookies will each one get?
Solution:
To find out how many cookies each one will get, we will have to do a division exercise.
We will write down the number of cookies divided by the number of people and get the result.
That is:
6:3=2
We could write the exercise as a fraction as we learned before and get:
36=2
each one will get 2 cookies.
Another question
Bernard, Oscar, Nicholas, Ernest, and Gabriel are playing in the courtyard.
Suddenly, the teacher brings them 6 pizzas and asks them to share equally.
How many pizzas will each child receive?
Solution:
To answer, we will need to write a division exercise: the number of pizzas to be divided, divided by the number of children in the courtyard.
That is:
6:5=
Pay attention! It's time to turn the exercise into a fraction to know exactly how many pizzas each child received.
We will invert and get 56=
Now, we will convert the similar fraction into a mixed number and get 151.
Each child received one whole pizza and another fifth of a pizza. Or in summary 151 pizzas.
Another exercise
3 Good friends celebrated a birthday in the garden.
On the table –> 4 Cakes.
The children were asked to distribute the cakes equally.
Solution:
This time, we will write the division exercise directly as a fraction to save us a step.
In the numerator - the number that needs to be divided: 4 Cakes.
In the denominator - the number by which the cakes are divided: 3 -> the number of children celebrating.
We will obtain:
34
(The fraction expresses the division exercise for us 4:3=)
We will convert it into a mixed number and obtain: 131
Each child received 131 cake.
Bonus section
What would happen if there were only 2 cakes on the table? How much would each child get then?
Solution:
If there were 2 cakes on the table we would get:
32
It is impossible to reduce it or convert it into a mixed number and that is exactly the answer.
All the children would have received 32 cake.
Examples and exercises with solutions of fraction as divisor
Exercise #1
Without calculating, determine whether the quotient in the division exercise is smaller than 1 or not:
2:1
Video Solution
Step-by-Step Solution
We know that every fraction 1 equals the number itself.
We also know that 2 is greater than 1.
Similarly, if we convert the expression to a fraction:
2/1
We can see that the numerator is greater than the denominator. As long as the numerator is greater than the denominator, the number is greater than 1.
Answer
Exercise #2
Without calculating, determine whether the quotient in the division exercise is less than 1 or not:
5:6=
Video Solution
Step-by-Step Solution
Note that the numerator is smaller than the denominator:
5 < 6
As a result, we can claim that:
\frac{5}{6} < 1
Therefore, the quotient in the division problem is indeed less than 1
Answer
Exercise #3
Without calculating, determine whether the quotient in the division exercise is less than 1 or not:
7:11
Video Solution
Step-by-Step Solution
Note that the numerator is smaller than the denominator:
7 < 11
As a result, we can claim that:
\frac{7}{11}<1
Therefore, the quotient in the division problem is indeed less than 1
Answer
Exercise #4
Without calculating, determine whether the quotient in the division exercise is less than 1 or not:
1:2=
Video Solution
Step-by-Step Solution
Note that the numerator is smaller than the denominator:
1 < 2
As a result, we can claim that:
\frac{1}{2}<1
Therefore, the fraction in the division problem is indeed less than 1
Answer
Exercise #5
Without calculating, determine whether the quotient in the following division is less than 1 or not:
11:8
Video Solution
Step-by-Step Solution
Note that the numerator is smaller than the denominator:
11 > 8
As a result, we can claim that:
\frac{11}{8} > 1
Therefore, the quotient in the division problem is not less than 1
Answer