Last updated on July 24th, 2025
Multiplying a fraction by a mixed number involves calculating the product of a simple fraction and a mixed fraction. The fraction is a way of representing a part of the whole; it is written in the form p/q. A mixed fraction is a type of fraction, combining a whole number and a fraction; it can be written in the form N(p/q). Here, N can be any whole number, and p/q is the fraction. In this article, we will discuss more about multiplying fractions with mixed numbers.
A fraction shows a part of something. It has two numbers: the numerator and the denominator. The numerator is the number above the fraction bar and represents the selected parts. The part written below the fraction bar is the denominator, and it is the total number of parts.
For example, if the cake is cut into 4 equal slices and you have eaten ¼ of the cake. Here, the numerator 1 is the slice you ate, and the denominator 4 is the total number of slices.
Multiplying fractions with mixed numbers follows the steps given below.
Step 1: To multiply fractions with mixed numbers, first convert the mixed number to an improper fraction
The mixed fraction is a type of number that includes a whole number and a fraction. To convert a mixed fraction to a fraction,
1. Multiply the whole number and the denominator of the fraction.
2. Add the product to the numerator of the fraction.
3. The sum is the new numerator, and keeps the denominator the same.
Step 2: Multiply the fractions
As we converted the mixed fraction to an improper fraction, we now have two fractions. So, we multiply both the fractions now. To multiply the fractions, multiply the numerators and the denominators.
Step 3: Simplify the answer
Divide both the numerator and denominator by its GCF for simplification.
Step 4: Convert the improper fraction to a mixed fraction
If the answer is in an improper fraction, we need to convert it to a mixed number.
To convert, follow the steps given below.
1. First, divide the numerator by the denominator.
2. The quotient is the whole number, the remainder is the new numerator, and the denominator will be the same.
Let's look at the steps of multiplying fractions with mixed numbers by using the following example.
Example: Multiply ½ × 2 ¼
Step 1: Convert the mixed number to an improper fraction
1. Multiply the whole number by the denominator. Here, the whole number is 2, and the denominator is 4; 2 × 4 = 8.
2. Add the numerator in the fraction to the result. The numerator is 1, adding 1 to 8 gives 9.
3. Keep the denominator the same. Therefore, the final improper fraction is 9/4.
Step 2: Multiply the fractions
Multiply ½ × 9/4
To multiply fractions, we multiply the numerators and denominators of both fractions
1. Multiplying the numerator, we get 1 × 9 =9.
2. Multiplying the denominator, we get 2 × 4 = 8.
3. So the answer becomes 9/8.
4. If there is a common factor for both the numerator and the denominator, we can simplify the fraction. As 9 and 8 have no common factor, we cannot simplify 9/8.
Step 3: Convert it to a mixed number.
1. Divide the numerator by the denominator. Dividing 9/8, we will get 1 ⅛.
2. The quotient becomes the whole number, the remainder becomes the new numerator, and the denominator stays the same.
The final answer is 1 ⅛.
Multiplying fractions with mixed numbers is useful in many real-life situations, such as finance, healthcare, construction, etc.
Healthcare
Doctors and medical professionals often use fractions and mixed numbers to calculate medication dosages, IV drip rates, and for treatment plans.
Construction
In construction, workers use fraction measurements to calculate the amount of wood, tiles, or paint required for the work.
Finance
In finance, to calculate discounts, interest rates, and tax deductions, we multiply fractions with mixed numbers.
While multiplying fractions with mixed numbers, kids make mistakes. But by using the following mistakes and the ways to avoid them, they can avoid making these mistakes.
Multiply ¾ × 2 ⅖
1 ⅘
Step 1: Convert 2 ⅖ to an improper fraction (2 × 5) + 2 = 10 + 2 = 12
Step 2: Multiply ¾ × 12/5
(3 × 12)/(4 × 5) = 36/20
Step 3: Simplify 36/20 = 18/10 = 9/5.
Step 4: Convert 9/5 to a mixed number; we will get 1 ⅘.
Multiply 2/7 × 3 ⅜.
27/28
Step 1: Convert 3 ⅜ to an improper fraction. (3 × 8) + 3 = 24 + 3 = 27/8
Step 2: Multiply 2/7 × 27/8 = (2 × 27)/(7 × 8) = 54/56.
Step 3: Simplify 54/56 = 27/28.
Multiply 7/9 × 4 ½.
3 ½.
Step 1: Convert 4 ½ to an improper fraction. (4 × 2) + 1 = 8 + 1 = 9/2.
Step 2: Multiply 7/9 × 9/2 = (7 × 9)/(9 × 2) = 63/18
Step 3: Simplify 63/18 = 7/2
Step 4: Convert 7/2 to a mixed number; we get 3 ½.
Multiply ⅓ × 5 ⅔.
1 8/9.
Step 1: Convert 5 ⅔ to an improper fraction, (5 × 3) + 2 = 15 + 2 = 17/3.
Step 2: Multiply ⅓ × 17/3 = (1 × 17)/(3 × 3) = 17/9.
Step 3: Convert 17/9 to a mixed number, 1 8/9.
Multiply ⅜ × 2 5/9
23/24
Step 1: Convert 2 5/9 to an improper fraction, (2 × 9) + 5 = 18 + 5 = 23/9
Step 2: Multiply ⅜ × 23/9 = (3 × 23)/(8 × 9) = 69/72.
Step 3: Simplify 69/72 = 23/24
Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.
: She loves to read number jokes and games.