Simplifying Expressions with Mixed Numbers

This video tutorial covers simplifying expressions using the order of operations, focusing on mixed numbers. It reviews the four steps of the order of operations: parentheses, exponents, multiplication and division, and addition and subtraction. The video provides three examples: multiplying mixed numbers, adding and subtracting fractions, and squaring fractions. Each example demonstrates the process of converting mixed numbers to improper fractions, finding common denominators, and simplifying results.

What is the first step in the order of operations?

• Add and subtract from left to right

• Simplify the innermost parentheses or grouping symbols

• Multiply and divide from left to right

• Simplify expressions with exponents

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CCSS.5.NF.B.6

In the first example, what is the result of multiplying the mixed numbers?

• 5

• 7

• 10

• 12

Why is it beneficial to convert mixed numbers to improper fractions when multiplying?

• It is optional for all operations

• It is required for multiplication and division

• It simplifies the process of borrowing

• It makes the numbers smaller

What is the least common denominator of 3 and 4?

• 8

• 6

• 12

• 10

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CCSS.5.NF.A.1

CCSS.5.NF.A.2

When adding fractions, why is a common denominator necessary?

• To avoid borrowing

• To simplify the numerators

• To ensure the fractions are equivalent

• To make the fractions larger

In the second example, what is the simplified form of 26/12?

• 2 1/6

• 1 1/6

• 2 1/12

• 1 1/12

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CCSS.6.EE.A.1

What is the result of squaring the fraction 11/15?

• 121/225

• 121/15

• 11/15

• 11/225

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CCSS.3.OA.D.9

How do you determine if a number is divisible by 3?

• If the number is even

• If the sum of its digits is divisible by 3

• If it ends in 3

• If it is a prime number

In the final example, what is the mixed number form of 271/225?

• 2 46/225

• 1 46/125

• 1 46/225

• 2 46/125

Tags

CCSS.4.OA.B.4

What are the factors of 46?

• 5 and 9

• 3 and 15

• 2 and 11

• 2 and 23

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CCSS.4.OA.B.4