2 over 8
1.5 or 1 + 1 over 2
The sequence of numbers is 2n where n goes from 1 to 5 Now sum (over n=1 to 5) of 2n = 2*sum (over n=1 to 5) of n = 2 * [5*(5+1)]/2 = 5*6 = 30
The sum of 5/6 and 5/6 is 1 2/3
The sum of 1/2 and 2/5 is 9/10
2 over 8
1.5 or 1 + 1 over 2
The sequence of numbers is 2n where n goes from 1 to 5 Now sum (over n=1 to 5) of 2n = 2*sum (over n=1 to 5) of n = 2 * [5*(5+1)]/2 = 5*6 = 30
The sum of 5/6 and 5/6 is 1 2/3
The sum of 1/2 and 2/5 is 9/10
The sum of 7/9 and 1/2 is 1 5/18
1/14 + 5/14 + 2/14 = (1+5+2)/14 = 8/14 = 4/7
The probability of rolling a sum of 5 with two die is 4 over 36, or 2 over 18, or 1 over 9.
3/5 + 1/2 = 6/10 + 5/10 = 11/10 = 11/10
The sum of 5/7 and 2/4 is 1 3/14
The sum of 7/8 and 2/5 is 1 11/40
The sum of -1/15 and -3/5 is -2/3