Simplifying Expressions and Operations

The video tutorial explains how to simplify expressions in fraction form by separately simplifying the numerator and denominator. It uses number lines to model operations with negative numbers and demonstrates how to simplify fractions by finding common factors. Two example expressions are simplified step-by-step, highlighting the process of converting subtraction of negatives to addition and simplifying the resulting fractions.

What is the first step in evaluating expressions in fraction form?

• Add the numerator and denominator

• Multiply the numerator and denominator

• Simplify the entire fraction at once

• Simplify the numerator and denominator separately

Tags

CCSS.7.NS.A.1C

How do you simplify the expression -3 + 1?

• By multiplying the numbers

• By dividing the numbers

• By adding the numbers

• By subtracting the numbers

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the result of adding 4 and 8 in the denominator?

• 16

• 12

• 10

• 14

What common factor is used to simplify -2/12?

• 4

• 3

• 6

• 2

Tags

CCSS.7.NS.A.1C

How is subtracting a negative number equivalent to?

• Subtracting a positive number

• Adding a positive number

• Multiplying by a negative number

• Dividing by a positive number

Tags

CCSS.7.NS.A.1C

What is the simplified form of -6 + 2?

• -8

• 0

• -4

• -2

Tags

CCSS.7.NS.A.1B

What is the result of adding -8 and 2 in the denominator?

• -4

• -2

• -6

• -10

Tags

CCSS.7.NS.A.2A

CCSS.7.NS.A.2B

What is the result of dividing a negative by a negative?

• Negative

• Zero

• Positive

• Undefined

What common factor is used to simplify 4/6?

• 2

• 3

• 4

• 6

Tags

CCSS.6.EE.A.2C

What is the final simplified form of the second expression?

• 1/3

• 2/3

• 4/5

• 3/4

Tags

CCSS.6.EE.A.2C