one and six over seven
Thirteen/Fourteenths
18
Five plus eight does not equal one. It equals thirteen.
five seventh
57/70
131/24
14 and 17/100
The difference is that they are both numbers. Two plus five is not thirteen. You can't divide thirteen equally...Sorry!
If you mean one and one seventh (1 1/7) plus five sevenths (5/7), the answer is 1 6/7.
13.507 = Thirteen and five hundred seven thousandths
Note that adding a negative number is equivalent to subtracting a positive number, so 13 + -8 is the same as 13 - 8 which equals 5.
Ten multiplied by open bracket, two point five plus thirteen point five, close bracket.