Transcript
![Page 1: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/1.jpg)
Activity-2
Objective: To find the sum of two rational numbers with different denominator.
Eg:
![Page 2: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/2.jpg)
![Page 3: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/3.jpg)
![Page 4: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/4.jpg)
Like this…We make a 7 X 3 grid because
the denominator in both the given
rational numbers are 7
and 3 resp.
![Page 5: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/5.jpg)
This “+” sign is to represent
![Page 6: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/6.jpg)
This “-” sign is to represent
![Page 7: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/7.jpg)
Enclose one “+” sign with one “-” sign (Fig. 4)
Now, count the unenclosed signs in Fig 4
Only 1 is left
![Page 8: sum of two rational numbers with different denominators (activity 2)](https://reader038.vdocuments.us/reader038/viewer/2022103010/58cf83f21a28abe01d8b5a07/html5/thumbnails/8.jpg)
Result: The rational number represented by unenclosed signs
is
So,