## Download Subtraction of Unlike Fractions (Women’s Day Themed) Worksheets

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## Definition

**Unlike fractions **are fractions that contains different denominators.

## Summary

- It is the result of multiplying numbers by another whole number.
- It is possible that a number can be a multiple of two or more numbers. This is called
**common multiple.** - The smallest number that is common to two or more multiples is called
**least common multiple**. - Determining the correct least common multiple (LCM) is needed to get the least common denominators of two unlike fractions.

Multiples of 2 | 2 | 4 | 6 | 8 | 10 | 12 |

Multiples of 3 | 3 | 6 | 9 | 12 | 15 | 18 |

Since the multiples of 2 contains 6 and 12 and the multiples of 3 contains 6 and 12 as well, 6 and 12 are already considered common multiples. **6 is the smallest common multiple, it is call the least common multiple of 2 and 3. **

**FACTORS**

- These are numbers being multiplied together to produce another number.
- Multiplying two or more numbers means that the factors are being multiplied together.
- In fact, factors are numbers involved when we perform multiplication.

**ILLUSTRATIVE EXAMPLES: **

What are the factors of 18?

The factors of 18 are 1, 2, 3, 6, 9, and 18.

**GREATEST COMMON FACTORS**

To find the GCF of two numbers:

- List the prime factors of each number.
- Multiply those factors both numbers have in common. If there are no common prime factors, the GCF is 1.
- GCF is needed in simplifying fractions or expressing them in simplest form.

**SUBTRACTING UNLIKE FRACTIONS**

Before you can subtract fractions with different denominators,

- Find the smallest multiple (LCM) of both numbers.
- Rewrite the fractions as equivalent fractions with the LCM as the denominator.
- Always express the answer in simplest form.

## Subtraction of Unlike Fractions (Women’s Day Themed) Worksheets

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