What is the sum of \(1\frac{1}{2}\; + \;4\frac{1}{6}\; + \;7\frac{1}{{12}}\; + \;10\frac{1}{{20}}\;\)upto 20 terms?
1
12410/21
2
12412/21
3
12433/21
4
1179/2
What is the sum of \(1\frac{1}{2}\; + \;4\frac{1}{6}\; + \;7\frac{1}{{12}}\; + \;10\frac{1}{{20}}\;\)upto 20 terms?