#### Fractions - Dividing Fractions

Dividing fractions made easy.

~Multiplication facts

~Division facts

~Converting improper fractions to mix numbers

~Converting mixed numbers to improper fractions

~Reducing fractions

To find the reciprocal of a number is to find another number that gives a product of one when multiplied together. For instance 3/5 and 5/3 are reciprocals of one another. Let us prove it by multiplying them. 3/5 X 5/3 = 15/15 = 1.

1) Rewrite as a multiplication problem using the reciprocal of the 2nd number

2) Multiply the numerators

3) Multiply the denominators

4) If necessary, reduce to the lowest terms

4/8 X 3/2 =

12/16 = 3/4

If needed, refer to the article,

In summary, 4/8 divided by 2/3 = 3/4

1) Convert all mixed numbers to improper fractions

2) Rewrite as a multiplication problem using the reciprocal of the 2nd number

3) Multiply numerators

4) Multiply denominators

5) If necessary, reduce to the lowest terms

Multiply the whole number and the denominator. Then, add the numerator. The denominator remains the same.

6 4/5 = 6 x 5 + 4 = 34/5

1 2/3 = 1 X 2 + 3 = 5/3

34/5 divided by 3/5

Answer: 102 / 25

Since, the numerator is larger than the denominator, it is considered an improper fraction. Convert to a mixed number.

102/25 =

The line between the 102 and 25 is called the fraction bar. The fraction bar denotes division. So read this number as 102 divided by 25. When you do the division, you get 4 with a remainder of 2. The 2 represents 4 wholes. Let us say 4 gigantic pizzas. The remainder indicates part of a whole (pizza). So, represent the remainder in fraction form.. Notice that the denominator remains the same.

In summary,

34/5 divided by 5/3

34/5 X 3/5 = 102/25 = 4 2/5

1) Change whole numbers to fractions

2) Rewrite as a multiplication problem using the reciprocal of the 2nd number

3) Multiply numerators

4) Multiply denominators

5) If necessary, simplify to the lowest terms

Remember, one is the denominator for all whole numbers

8/1 X 7/3 =

The above fraction 56/3 is an improper fraction and it is improper to leave it that way! So, 56 was divided by 3. The result is 18 remainder 2. Eighteen represents the whole number and the remainder is represented as the fraction 2/3.

In summary,

8/1 divided by 3/7

8/1 X 7/3 = 56/3 = 18 2/3.

**Skills Needed:**~Multiplication facts

~Division facts

~Converting improper fractions to mix numbers

~Converting mixed numbers to improper fractions

~Reducing fractions

**~Find the reciprocal**To find the reciprocal of a number is to find another number that gives a product of one when multiplied together. For instance 3/5 and 5/3 are reciprocals of one another. Let us prove it by multiplying them. 3/5 X 5/3 = 15/15 = 1.

**I. Steps for Dividing Fractions**1) Rewrite as a multiplication problem using the reciprocal of the 2nd number

2) Multiply the numerators

3) Multiply the denominators

4) If necessary, reduce to the lowest terms

**Example:**4/8 divided by 2/3**1) Rewrite as a multiplication problem using the reciprocal of the 2nd number**4/8 X 3/2 =

**1) Multiply the numerators:**4 X 3 = 12**2) Multiply the denominators:**8 X 2 = 16**Answer:**12/16**3) If necessary, reduce to the lowest terms**12/16 = 3/4

If needed, refer to the article,

*Reducing Fractions*at the end of this article.In summary, 4/8 divided by 2/3 = 3/4

**II. Steps for Dividing Fractions With Mixed Numbers**1) Convert all mixed numbers to improper fractions

2) Rewrite as a multiplication problem using the reciprocal of the 2nd number

3) Multiply numerators

4) Multiply denominators

5) If necessary, reduce to the lowest terms

**Example:**6 4/5 divided by 1 2/3**1) Convert mixed numbers to improper fractions**Multiply the whole number and the denominator. Then, add the numerator. The denominator remains the same.

6 4/5 = 6 x 5 + 4 = 34/5

1 2/3 = 1 X 2 + 3 = 5/3

**Now, the problem reads: 34/5 divided by 5/3****2) Rewrite as a multiplication problem using the reciprocal of the 2nd number**34/5 divided by 3/5

**2) Multiply numerators:**34 X 3 = 102**3) Multiply denominators:**5 X 5 = 25Answer: 102 / 25

**4) If necessary, reduce to the lowest terms**Since, the numerator is larger than the denominator, it is considered an improper fraction. Convert to a mixed number.

102/25 =

The line between the 102 and 25 is called the fraction bar. The fraction bar denotes division. So read this number as 102 divided by 25. When you do the division, you get 4 with a remainder of 2. The 2 represents 4 wholes. Let us say 4 gigantic pizzas. The remainder indicates part of a whole (pizza). So, represent the remainder in fraction form.. Notice that the denominator remains the same.

**Thus, 102/25 = 4 2/25**In summary,

**6 4/5 divided by 1 2/3 =**34/5 divided by 5/3

34/5 X 3/5 = 102/25 = 4 2/5

**III. Steps for Dividing Fractions and Whole Numbers**1) Change whole numbers to fractions

2) Rewrite as a multiplication problem using the reciprocal of the 2nd number

3) Multiply numerators

4) Multiply denominators

5) If necessary, simplify to the lowest terms

**Example: 8 X 3/7****1) Change whole numbers to fractions:**8 = 8/1Remember, one is the denominator for all whole numbers

**2) Rewrite as a multiplication problem using the reciprocal of the 2nd number**8/1 X 7/3 =

**2) Multiply numerators:**8 X 7 = 56**3) Multiply denominators:**1 X 3 = 3**Thus:**8/1 X 7/3 = 56/3**4) If necessary, simplify to the lowest terms****56/ 3 = 18 2/3**The above fraction 56/3 is an improper fraction and it is improper to leave it that way! So, 56 was divided by 3. The result is 18 remainder 2. Eighteen represents the whole number and the remainder is represented as the fraction 2/3.

In summary,

**8 divided by 3/7 =**8/1 divided by 3/7

8/1 X 7/3 = 56/3 = 18 2/3.

**You Should Also Read:**

Fractions - Multiplying Fractions

Multiplication Facts

How to Teach Math - Review

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