sum of two rational numbers with same denominator (Activity-1)
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Activit y-1 Objective: To find the sum of two rational numbers with same denominator. Eg:
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Transcript of sum of two rational numbers with same denominator (Activity-1)
![Page 1: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/1.jpg)
Activity-1
Objective: To find the sum of two rational numbers with same denominator.
Eg:
![Page 2: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/2.jpg)
![Page 3: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/3.jpg)
![Page 4: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/4.jpg)
Like this…We make a 7 X 7 grid because
the denominator in both the given
rational numbers is 7.
![Page 5: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/5.jpg)
This “+” sign is to represent
![Page 6: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/6.jpg)
This “-” sign is to represent
![Page 7: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/7.jpg)
Enclose one “+” sign with one “-” sign (Fig. 4)
Now, count the unenclosed signs in Fig 4
They are 14 in all
![Page 8: sum of two rational numbers with same denominator (Activity-1)](https://reader035.fdocuments.us/reader035/viewer/2022062306/58cf855c1a28abe01d8b5cdd/html5/thumbnails/8.jpg)
Result: The rational number represented by unenclosed signs
is
So,