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Big Ideas Math: Modeling Real Life, Grade 6

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Big Ideas Math: Modeling Real Life, Grade 6 View details

Practice Test

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Exercise 2 Page 100

Multiply both the numerators and the denominators.

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Recall that dividing fractions is the same as multiplying the first fraction by the reciprocal of the second fraction. 5/6÷10/21=5/6*21/10When we multiply fractions, we need to remember that the product of two fractions is equal to the product of the numerators divided by the product of the denominators. Let's find the given product!

5/6*21/10

Multiply fractions

5* 21/6* 10

Multiply

105/60

a/b=.a / 15./.b / 15.

105/ 15/60/ 15

Calculate quotient

7/4

The quotient is 74. Now, we will rewrite this as a mixed number.

7/4

Write as a sum

4+3/4

Write as a sum of fractions

4/4+3/4

Calculate quotient

1+3/4

Add terms

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Checking Our Answer

We can check our answer by finding the product using a calculator. However, most calculators will give the product as a decimal number. Because our answer is a fraction, we need to compare the product of the original fractions to the decimal that is equivalent to the final product that we found. First, let's find the decimal form of our product.

Now we will find the product of the fractions using the calculator.

Because the calculator found the same decimal for both calculations, we know that our answer was correct!

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