10.
Addition and subtraction of fractions
1.
How to add or subtract?
2.
(Proper fraction) + (Proper fraction)
3.
Subtraction of fractions
4.
(mixed number) + (mixed number)
5.
(mixed number) - (mixed number)
Unit conclusion
Confirm in descriptive form
Rest: The Eye of Horus

11.
Multiplication of fractions
1.
(fraction) × (natural number)
2.
(mixed fraction) × (natural number)
3.
(natural number) × (fraction)
4.
(Proper fraction) × (Proper fraction)
5.
Multiplication of mixed numbers
6.
(mixed number) × (mixed number)
7.
Multiplication of three or more fractions
Unit conclusion
Confirm in descriptive form
Take a break: I multiplied it and it got smaller!

12.
Division of fractions
1.
(natural number) ÷ (natural number)
2.
(fraction) ÷ (natural number)
3.
Division by natural numbers
4.
Fractions with the same denominator ÷ (fraction)
5.
(natural number) ÷ (fraction)
6.
(fraction) with different denominators ÷ (fraction)
7.
Division is multiplication
Unit conclusion
Confirm in descriptive form
Taking a Break: Why the Denominator Can't Be Zero

Fractions are also numbers!
Therefore, fractions can also be added, subtracted, multiplied, and divided.
Calculations are possible for any type of fraction, whether it is a fraction with the same denominator, a fraction with different denominators, an improper fraction, or a mixed number.

Are you curious about how to calculate it? Let me give you a hint.
Unlike natural numbers, fractions are not calculated vertically.
The reasons and detailed explanations are included in the book.

1.
Addition and subtraction of fractions with different denominators
When adding or subtracting fractions with the same denominator, leave the denominator as is and only calculate the numerators.
It's very easy to calculate.
However, addition and subtraction of fractions with different denominators are different.
We can use the common denominator that we learned in Book 3 of Fractions to make the denominators the same, and then calculate the numerators.

Why do we need to make denominators equal? ​​Why can't we add or subtract denominators to each other or numerators to each other? Elementary Fraction Concepts Come First, Volume 4, explains the reasons in a way that's easy for children to understand.
Don't just memorize it without knowing why, but now understand the real principle.
So that you can learn it naturally without having to mechanically solve countless problems.

2.
Multiplication of fractions
It is a mistake to think that multiplication always increases the number!
Because when you multiply a proper fraction like 1/2, the number gets smaller.
Since we only learned multiplication of natural numbers before 5th grade, we know that multiplication is adding the same number multiple times.
However, it is difficult to apply 'adding the same number multiple times' in multiplying fractions.

Consider 3 times 1/2. Adding 3 1/2 times? Sounds strange, doesn't it? That's why multiplying fractions requires a different approach than multiplying whole numbers.

This book explains in detail what it means to multiply fractions and how to actually calculate the multiplication of fractions.
It explains in a friendly way why calculations need to be made that way, visually showing the principles.

3.
Division of fractions
Multiplication expressions can be written as division expressions, and division expressions without remainders can be written as multiplication expressions.
Multiplication and division are not very different in meaning, they just differ in how you look at them.
Because when calculating simple division equations, we also used the multiplication table to find the quotient.
However, division of fractions is not calculated directly, but is converted into a multiplication formula.
Division is multiplication, and the divisor must be converted to its reciprocal.
Do you know why we calculate it that way? If you're curious, check out "Elementary Fractions: Concepts Come First, Volume 4."
We'll answer all your questions about fraction calculations.


4.
Free video lectures so you can study on your own!
The book itself is packed with detailed explanations and engaging illustrations, making it easy for independent study. But our digital-age children prefer video learning, right? That's why we included it.
Scan the QR codes located throughout the book.
You can study all concepts from the first to the last unit by watching video lectures.
Check out this delightful, refreshing, and exhilarating lecture from a former EBS math teacher right now!


★★★ Great for students like this!
*Friends who are good at finding answers, but don't know the concept when asked about it
*Friends who sometimes get the same type of problem right and sometimes get it wrong

★★★ A math book worthy of being called math!!
Mathematics is often said to be beautiful because it presents the necessary truths in a clean, uncluttered way.
We are solving the concept of fractions in the most mathematical way possible.

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A math book with a pastel-toned layout that resembles a fairy tale has been published, unfolding mathematical concepts through illustrations.
Add fun to your studies with these pretty math books.