Question

Sum of 12/13+(-1/13)=

Answer 1

`(12)/(13) + (-(1)/(13)) = (12)/(13) - (1)/(13) = (12-1)/(13) =\boxed{ (11)/(13)}`

Answer 2

`(12)/(13)` +
`(- (1)/(13) )`

First, simplify the brackets. / Your problem should look like:
`(12)/(13)` -
`(1)/(13)`
Second, simplify. / Your problem should look like:
`(11)/(13)`

Answer as fraction:
`(11)/(13)`
Answer as decimal: 0.8462