Answer:
53,316,291,173
Explanation:
If these terms F(51) and F(52) follow the Fibonacci sequence, then the rule for the sequence will be,
![T_(n)=T_(n-1)+T_(n-2)](https://img.qammunity.org/2020/formulas/mathematics/high-school/qfs1y8hu79cdulicchz7upklm3oj60bkv2.png)
That means,
![T_(53)=T_(51)+T_(52)](https://img.qammunity.org/2020/formulas/mathematics/high-school/g5t0zv63e2fz914ts2evrobmuebrx6ird0.png)
Therefore,
![F_(53)=F_(51)+F_(52)](https://img.qammunity.org/2020/formulas/mathematics/high-school/rpspch0pehg68cn7dhtbua2nxccth698ny.png)
= 20,365,011,074 + 32,951,280,099
= 53,316,291,173
Therefore, addition of these terms will be 53,316,291,173.
This clearly speaks that in the Fibonacci sequence addition of two terms forms the third number of the sequence.