To find the answer you must first find the least common denominator. In which this case would be 20. Since 4 goes into 20 5 times, multiply the fraction by 5/5, resulting in 15/20. As for 5, it goes into 20 four times, resulting in 8/20. You then add the two together and you will get 23/20. Since you cannot simplify, this is your final answer in fraction form. If you wish to convert to decimal, then the answer would be 1.15
2 & 1 over 4 (2.25)
((2 plus (1 over 4)) plus 3) plus (7 over 8) = 6.12500
8/3 = 2 and 2/3
2 over 3 plus 4 1 over 4 = 59/12 or 411/12
3/4 + 2/4 = 11/4
6.5.
It is: 2/3+7/4+3/4 = 19/6 or as a mixed number 3 and 1/6
2 over 3 plus four over six equals 2
It is: 7/2 plus 3/4 = 17/4 which is 4 and 1/4 or as a decimal 4.25
2/3 + 1/4 + 2/3 = 4/3 + 1/4 = (16/12) + (3/12) = 19/12 = 1 and 7/12
11/12
3 1/4