13
17
9
"The sum of 4 plus 5" can be expressed mathematically as 4 + 5 = 9. Now go do your homework.
The sum of 5 and -9 is -4.
The sum of 4/9 and 1/9 is 5/9.
It is -9x plus 5.
The sum of 8/9 and 4/7 is 1 29/63.
simply 9
the sum of 1 plus 9 is 10 because 1+9
The sum of 3/4 and 1/9 is 31/36
The sum of 1/6 and 4/9 is 11/18.
It is: 19a+27b-9 simplified