Exploring Operations with Rational Numbers

What is the common denominator for fractions with denominators 2 and 7?

• 10

• 14

• 12

• 9

How do you input a negative fraction in a graphing calculator?

• Use the minus sign

• Use the negative button

• Use the plus sign

• Type 'neg'

Tags

CCSS.7.EE.B.3

What should you do if the calculator shows a decimal result?

• Restart the calculator

• Ignore the decimal

• Use the math function to convert it

• Convert it manually to a fraction

What is the result of subtracting 1/4 from 7/8?

• 7/8

• 6/8

• 3/8

• 5/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

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

• Divide the whole number by the denominator

• Add the numerator to the denominator

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

• Multiply the whole number by the numerator

What is the simplified form of 14/10?

• 7/5

• 2/1

• 4/3

• 14/10

What mnemonic device is used for dividing fractions?

• Add, subtract, multiply

• Keep, change, flip

• Flip, multiply, reduce

• Divide, multiply, subtract

Tags

CCSS.6.NS.A.1

What is the result of the division of -4/3 by -7/6?

• 8/7

• 7/8

• 6/7

• 7/6

Tags

CCSS.7.NS.A.2B

When using a graphing calculator, what is crucial to avoid syntax errors?

• Using the multiplication sign

• All of the above

• Using the negative button correctly

• Using the correct parentheses

How do you simplify the fraction 24/21?

• 8/7

• 12/11

• 24/21

• 6/5