Adding and Subtracting Negative Fractions with Unlike Denominators

The video tutorial explains how to solve a fraction subtraction problem involving negative fractions. It begins by simplifying fractions with a common denominator, then finds the least common denominator for all fractions involved. The tutorial concludes with the final calculation, resulting in a simplified fraction.

What are the fractions given in the problem?

• 3/4, 7/6, 3/6

• -3/4, -7/6, -3/6

• 3/4, -7/6, -3/6

• -3/4, 7/6, -3/6

Tags

CCSS.6.NS.C.7C

Which fractions are combined first?

• -3/4 and -7/6 and -3/6

• -3/4 and -3/6

• -7/6 and -3/6

• -3/4 and -7/6

Tags

CCSS.7.NS.A.1C

What is the result of combining -7/6 and -3/6?

• -10/6

• -4/6

• -1/6

• -5/6

Tags

CCSS.7.NS.A.1C

What is the next step after combining -7/6 and -3/6?

• Finding a common denominator

• Adding the fractions directly

• Simplifying the fractions

• Finding a common numerator

Tags

CCSS.7.NS.A.1C

What is the smallest common multiple of 4 and 6?

• 8

• 10

• 12

• 14

How do you convert -3/4 to have a denominator of 12?

• Multiply numerator and denominator by 6

• Multiply numerator and denominator by 2

• Multiply numerator and denominator by 4

• Multiply numerator and denominator by 3

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the new numerator of -3/4 when converted to a denominator of 12?

• -12

• -9

• -6

• -15

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the new numerator of -10/6 when converted to a denominator of 12?

• -20

• -15

• -18

• -22

Tags

CCSS.3.NF.A.3B

CCSS.4.NF.A.1

What is the result of adding -9/12 and -20/12?

• -19/12

• -9/12

• -29/12

• -39/12

Tags

CCSS.7.NS.A.1C

Is the fraction -29/12 in its simplest form?

• Yes, because 29 is a prime number

• No, it can be simplified further

• Yes, because 12 is a prime number

• No, because 29 is not a prime number