25
The sum of 1/2 and 2/5 is 9/10
The sum of 2 1/2 and 5/3 is 4 1/6.
41
The sum of 3 1/2 and 2 1/3 is 5 5/6
The sum of 2/3 and 5/6 is 1 1/2.
The sum of 1/2 and 5/8 is 1 1/8
25
(n2 + n)/2 1+2+3+4+5+n= 15+n
The sum of 1/2 and 2/5 is 9/10
The sum of 5/12 and 2/3 is 1 1/12The sum of 5/12 and 2/3 is 1 1/12
The sum of 2 1/2 and 5/3 is 4 1/6.
41
1 2/5
The sum of 3 1/2 and 2 1/3 is 5 5/6
500,000,500,000 is the answer.
The sum of 2/3 and 5/5 is 1 2/3