Expressing Rational Numbers in m/n Form

This video tutorial explains the concept of rational numbers, which are numbers that can be expressed as a fraction of two integers, with the denominator not equal to zero. It covers how integers and fractions can be expressed as rational numbers, provides examples of converting whole numbers and mixed numbers into rational numbers, and discusses handling negative fractions by assigning the negative sign to either the numerator or the denominator.

What is a rational number?

• A number that is always negative.

• A number that is always positive.

• A number that cannot be written as a fraction.

• A number that can be written as a fraction with a non-zero denominator.

Why is the term 'rational' used for rational numbers?

• Because they cannot be written as fractions.

• Because they are always whole numbers.

• Because they can be written as a ratio of two integers.

• Because they are always positive.

How can the number 3 be expressed as a rational number?

• 1/3

• 3/3

• 3/1

• 3/2

What is the denominator when expressing whole numbers as rational numbers?

• 0

• 1

• 2

• Any number

How can the number -45 be expressed as a rational number?

• 45/1

• -45/0

• 45/-1

• -45/1

What is an improper fraction?

• A fraction where the numerator is smaller than the denominator.

• A fraction where the numerator is larger than the denominator.

• A fraction that cannot be simplified.

• A fraction with a negative denominator.

How do you convert 11 and 7/9 to an improper fraction?

• 110/9

• 117/9

• 106/9

• 99/9

What is the first step in converting a mixed number to an improper fraction?

• Add the whole number to the fraction.

• Multiply the whole number by the denominator.

• Subtract the fraction from the whole number.

• Divide the whole number by the fraction.

How can the fraction -16/21 be expressed as a rational number?

• 16/21 or -16/-21

• -16/21 or -16/21

• 16/21 or 16/21

• -16/21 or 16/-21

What must be true about the numerator and denominator in a rational number?

• Both must be positive.

• Both must be negative.

• Both must be fractions.

• Both must be integers.