Solve Mixed Number Division: (45 7/15) ÷ 9 Step-by-Step

Solve the following expression:

(+45715):(+9)= (+45\frac{7}{15}):(+9)=

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Step-by-step video solution

Watch the teacher solve the problem with clear explanations
00:00 Solve
00:03 Positive divided by positive is always positive
00:29 Convert mixed fraction to fraction
00:38 Use long multiplication to calculate
01:05 Write division as multiplication by reciprocal
01:10 Switch between numerator and denominator
01:17 Make sure to multiply numerator by numerator and denominator by denominator
01:24 Use long multiplication to calculate
01:33 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 expression:

(+45715):(+9)= (+45\frac{7}{15}):(+9)=

2

Step-by-step solution

Since we are dividing two positive numbers, the result must be a positive number:

+:+=+ +:+=+

First, let's convert each mixed fraction to an improper fraction as follows:

9=91 9=\frac{9}{1}

45715=45×15+715= 45\frac{7}{15}=\frac{45\times15+7}{15}=

Let's solve the multiplication in the numerator:

45×15675 45\\\times15\\675

We should obtain the following:

675+715=68215 \frac{675+7}{15}=\frac{682}{15}

Now our division problem between the fractions looks like this:

68215:91= \frac{682}{15}:\frac{9}{1}=

Let's convert the division to multiplication, and don't forget to switch between numerator and denominator:

68215×19= \frac{682}{15}\times\frac{1}{9}=

Let's combine everything into one problem:

682×115×9= \frac{682\times1}{15\times9}=

Let's solve the problem in the numerator:

15×9135 15\\\times9\\135

And the result is:

682135 \frac{682}{135}

3

Final Answer

682135 \frac{682}{135}

Practice Quiz

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What will be the sign of the result of the next exercise?

\( (-2)\cdot(-4)= \)

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