Exploring Operations with Rational Numbers

What is the common denominator for the fractions 3/4 and 5/8?

• 32

• 16

• 8

• 4

When adding fractions, what must remain the same?

• Numerators

• Denominators

• Both numerators and denominators

• None of the above

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

How do you convert a mixed number to an improper fraction?

• Add the numerator to the denominator

• None of the above

• Divide the whole number by the numerator

• Multiply the whole number by the denominator and add the numerator

What is the result of multiplying -3/2 by 11/5?

• 33/10

• -33/10

• 15/7

• -15/7

Tags

CCSS.7.NS.A.2A

What method is used to simplify the division of fractions?

• Cross-multiplication

• Keep-change-flip

• Addition-subtraction

• None of the above

Tags

CCSS.6.NS.A.1

What is the result of dividing 4/5 by -2/3?

• 12/10

• -12/10

• 6/5

• -6/5

Tags

CCSS.7.NS.A.2B

How do you handle a negative sign in fraction division?

• Either in the numerator or denominator

• Ignore the negative sign

• Place it in the denominator

• Place it in the numerator

Tags

CCSS.7.NS.A.2B

What is the sum of 4.3 and -2.6?

• -6.9

• 1.7

• 6.9

• -1.7

Tags

CCSS.7.NS.A.1C

What is the result of adding two negative mixed numbers?

• A positive number

• Cannot be determined

• A negative number

• Zero

Tags

CCSS.7.NS.A.1C

What simplification technique is used when multiplying fractions to avoid large numbers?

• Subtraction of fractions

• Addition of fractions

• Direct multiplication

• Cross simplification

Tags

CCSS.5.NF.B.6