Question

What is the answer to -4/5 + 3/20 =

Answer 1

The answer to your question is: -4/5 + 3/20 = -0.65

Answer 2

`- (4)/(5) + (3)/(20)`

First, find the LCD of the two denominators.
Multiples of 5: 5, 10, 15, 20
Multiples of 20: 20
The LCD is 20.
Second, make the denominators the same as the LCD. / Your problem should look like:
`-(4x4)/(5x4) + (3)/(20)`
Third, simplify so that the denominators are the same. / Your problem should look like:
`- (16)/(20) + (3)/(20)`
Fourth, combine the denominators. / Your problem should look like:
`(-16+3)/(20)`
Fifth, simplify. / Your problem should look like:
`-(13)/(20)`

Answer as fraction:
`- (13)/(20)`
Answer as decimal: -0.65