The sum of those fractions is 9 over 10 or 9/10.
1.5 or 1 + 1 over 2
The sum of 1/8 and 3/8 is 1/2
2 over 8
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
2 over4, 1 over2
The sum of those fractions is 9 over 10 or 9/10.
1.5 or 1 + 1 over 2
The sum of 1/8 and 3/8 is 1/2
2 over 8
13/12
23/48
13 over 12
The sum of 7/9 and 1/2 is 1 5/18
To add 2/3 and 1/2, we need a common denominator. The least common multiple of 3 and 2 is 6. So, we rewrite 2/3 as 4/6 and 1/2 as 3/6. Adding them together, we get 4/6 + 3/6 = 7/6.
3/4 × 2/5 = (3×2)/(4×5) = 6/20 = 3/10
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