5.3I Multiply Whole Number by a Fraction

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as 'a/b', where 'a' is the numerator (part) and 'b' is the denominator (whole).

Front

What does it mean to multiply a whole number by a fraction?

Back

Multiplying a whole number by a fraction means finding a part of that whole number. For example, 3 x 1/2 means finding half of 3.

Front

How do you find 1/4 of 100?

Back

To find 1/4 of 100, divide 100 by 4. 100 ÷ 4 = 25.

Front

What is the equation for finding a fraction of a number?

Back

The equation is: (Fraction) x (Whole Number) = (Part). For example, (1/4) x (100) = 25.

Front

What is 4/5 of 20?

Back

To find 4/5 of 20, multiply: 4/5 x 20 = 16.

Front

What does the numerator represent in a fraction?

Back

The numerator represents the number of parts we have.

Front

What does the denominator represent in a fraction?

Back

The denominator represents the total number of equal parts in a whole.

Front

How do you convert a fraction to a decimal?

Back

To convert a fraction to a decimal, divide the numerator by the denominator. For example, 1/4 = 0.25.

Front

What is 5/6 of 30?

Back

To find 5/6 of 30, multiply: 5/6 x 30 = 25.

Front

If Jenny spent 7 days at Grandma's, how many days did her sister spend if she spent 6/7 of that time?

Back

Her sister spent 6 days at Grandma's house.