Lesson 2: Fractions

Question 1

A Fraction Is A Part Of A Whole Number.

You Will Learn:
* What Is A Fraction?
*What Are Numerators & Denominators?
*How Big Or Small Can Fractions Be?
*How Do You Add & Subtract Fractions?

A Fraction Is Written On Two Lines Seperated By A Fraction Line. For Example 1/5 Is A Fraction That Means One Part Out Of Five Parts.

Fractions Are Shown 3 Ways. You Will See All Of Them:
They Can Look Like This: 1/5
Or Like This: 1|5
Or Like This: 1 Over 5

Example:

If You Ride The Bus One Out Of Five Days, Then You Ride The Bus 1/5 Of The Days. The 1/5 Is The Fraction That Shows One Part Out Of Five.

Test Tip: (1/5) Numerator/Denominator

Answer 1

Numerators & Denominators

The Number On The Top Of The Fraction Line Is Called The NUMERATOR.
The Number Underneath The Fraction Line Is Called The DENOMINATOR.

*Test Tip: Denominator & Down Start With D. Denominator Is Below The Fraction Line.

Question 2

Proper & Improper Fractions

Fractions We Use In Everyday Life Are Smaller Than One Whole, Like The Ones Above. These Are PROPER FRACTIONS. They Show How Many Parts Of The Whole There Are. Sometimes Fractions In Math Are Equal To One. These Are Proper Fractions, too.

Example:
If You Rode The Bus All Five Days Out Of Five Days, The Fraction Would Be Written As 5/5. It’s All Five Parts Out Of Five Parts, So They Equal One Whole Number, Or 1. 5/5=1. So Does 2/2. So Does 63/63

Answer 2

Improper Fractions

Some Fractions In Math Are Greater Than 1. A Fraction That Is Greater Than A Whole (BIgger Than 1) Is Called An IMPROPER FRACTION. The Numerator Is Bigger Than THe Denominator. It Has More Parts Than The Whole.

Example:

It Would Be 7/5, 8/2, 63/7 So If They Aren’t really Fractions Because They Are Bigger Than The Whole, Why Do Improper Fractions Exist? It’s Because We Need Them In Math For Doing Calculations With Fractions.

When You Are Finished With The Calculations, You Can Turn Improper Fractions Back Into Whole Numbers Or MIXED NUMBERS. Mixed Numbers are numbers With The Whole Numbers & Fractions Together like 2 1/2.

Question 3

Adding & Subtracting Fractioms

Adding & Subtracting Fractions Follows The Same Rules As Adding And Subtracting Integers. Fractions Can Be Harder Because A Number Line With Fractions Is Harder To Draw Or To Picture In Your Mind.

Like Denominators

First, The Numbers Need To Have Like Denominators. The Denominators Need To Be Like Each Other: The Same Number.

Example:
3/4 + 1/4 =
In This Example, Both Denominators Are 4. Because The Fractions Have Like Denominators, We Can Move To The Next Step And Add Them. In Fractions, We Add Or Subtract The Numerators. The Denominator Stays The Same.

Answer:

3/4 + 1/4 = 4/4.

Answer 3

In The Numerator, 3+1 Is 4. The Denominator Stays 4.

Four Out Of Four (4/4) Is The Same As The Number 1.

If You Cut A Pie Into Four Pieces, And Eat All Four Pieces (Four Out Of Four) Then You Have Eaten One Whole Pie. 4/4 =1.

Rewriting The Fraction To Be Simpler Is Called Reducing The Fraction. We Will Learn More About Reducing Fractions In A Later Lesson. So 3/4+1/4=4/4=1.

To Subtract With Fractions, You Follow The Same Rule. Simply Subtract The Top And Leave The Bottom The Same: 5/6-4/6=1/6

What If The Denominators Are DIFFERENT?
If Two Fractions Don’t Have The Same Number For The Denominator (Like Denominator) We Cannot Add, Subtract Or Reduce Them. We Must Change One Of The Fractions First, So They Have The Same Denominator.

In A Later Lesson, We Will Learn How To Do Math To Make THe Denominator the same For Two = More Fractions. This Is Called “Finding A Common Denominator.”

*Test Tip: Understand The Question!”
Study Quiz: 75% 3 out of 4 correct