Question

Add.

−1 4/5 + (−1/4) + (−1/5)

What is the answer as a simplified mixed number in the box.

Answer 1

1
`(7)/(20)`

Explanation:

1. Convert the mixed number to an improper fraction to match the rest of the problem (this just makes it easier for now, the answer will still be a mixed number)

-1
`(4)/(5)` becomes
`(9)/(5)`

2. Re-write the new equation. When there is a "+" in front of a set of parentheses the expression doesn't change aside from removing the plus signs.

The new equation becomes

`(9)/(5) - (1)/(4) -(1)/(5)`

3. Calculate. Just work out the new expression.

The answer is
`(27)/(20)`

4. Convert to a simplified mixed decimal.

27 goes into 20 once with seven left over, making the answer 1
`(7)/(20)`