Solve: Adding (-1/5) and (-3 4/5) Negative Fractions

Solve the following problem:

(−15)+(−345)= (-\frac{1}{5})+(-3\frac{4}{5})=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Find the point on the axis
00:07 Positive times negative is always negative, therefore subtract
00:10 To subtract, move in the left (negative) direction on the axis
00:17 Calculate
00:19 And this is the solution to the question

Step-by-step written solution

Follow each step carefully to understand the complete solution
1

Understand the problem

Solve the following problem:

(−15)+(−345)= (-\frac{1}{5})+(-3\frac{4}{5})=

2

Step-by-step solution

Let's mark minus 15 \frac{1}{5} on the number line and move 345 3\frac{4}{5} steps to the left, meaning our result will be a negative number:

000

Let's remember the rule:

+(−x)=−x +(-x)=-x

Now let's write the exercise in the appropriate form and solve it:

−15−345=−4 -\frac{1}{5}-3\frac{4}{5}=-4

3

Final Answer

−4 -4

Practice Quiz

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a is negative number.

b is negative number.

What is the sum of a+b?

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