Question

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

Answer 1

$- \frac{4}{5} + \frac{3}{20}$

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: $-\frac{4x4}{5x4} + \frac{3}{20}$
Third, simplify so that the denominators are the same. / Your problem should look like: $- \frac{16}{20} + \frac{3}{20}$
Fourth, combine the denominators. / Your problem should look like: $\frac{-16+3}{20}$
Fifth, simplify. / Your problem should look like: $-\frac{13}{20}$

Answer as fraction: $- \frac{13}{20}$
Answer as decimal: -0.65

Answer 2

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