The sum of -80 and 77 is -3
-15.4
77
38 + 39 = 77
99
12 x 77 = 924
The numbers 40.5 and 36.5 have a difference of 4 and a sum of 77.
The sum of 7 plus 71 is 77.
672.72 repeating
If: 2+3x = 77 Then: x = 25
77
The fraction 12/77 is already in the simplest form.