Fraction Vocabulary
- Fractions - part of a number - i.e.
etc.
- Numerator - top number of a fraction
- Denominator - bottom number of a fraction
- Proper Fraction - fraction with the lowest of the two numbers on the top - i.e.
- Improper Fraction - fraction when the highest of the two numbers is on the top - i.e.
- Greatest Common Factor(GCF) - the largest factor of two or more numbers.
- Fraction in Lowest Terms - a fraction that has been reduced ,or divided so far that the numerator and the denominator do not share factors any longer.
Steps to finding GCF:
- Write the factors of all your numbers
- Look for all the numbers that are the same
- The highest common number is the GCF
Example:Find the GCF of 16 and 24.
Solution: The GCF of 16 and 24 is 8.
Example: Put 4/8 into lowest terms. Solution - Divide both numbers by the greatest common factor.
In 4/8, the GCF is four, so after dividing both numbers by four, you get 1/2.
Least Common Multiple-the smallest factor of two numbers.
Example- find the LCM of 4 and 6. Solution- Factors of 4 - 4,8,12,16,20,24,28... Factors of 6 - 6,12,18,24,30... Factors they have in common are 12 and 24. the lowest number is 12, so the LCM of 4 and 6 is 12
To view info on mixed numbers, click on the icon below.
Adding and Subtracting Fractions and Mixed Numbers
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