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C2_Chapter 4
Chapter 4 Vocabulary
| Question | Answer |
|---|---|
| Bar Notation | In repeating decimals, the line or bar placed over the digits that repeat. For example, 2.63 indicates that the digits 63 repeat. |
| Common Denominator | A common multiple of the denominators of two or more fractions. 24 is a common denominator for 1/3, 5/8 and 3/4 because 24 is the LCM of 3, 8, and 4. |
| Composite Number | A whole number greater than 1 that has more than two factors. |
| Equivalent Fractions | Fractions that have the same value. 2/3 and 4/6 are equivalent fractions. |
| Factor Tree | A diagram showing the prime factorization of a number. The factors branch out from the previous factors until all of the factors are prime numbers. |
| Greatest Common Factor | The greatest of the common factors of two or more numbers. The GCF of 18 and 24 is 6. |
| Least Common Denominator | The least common multiple of the denominators of two or more fractions. |
| Least Common Multiple | The least of the common multiples of two or more numbers. The LCM of 2 and 3 is 6. |
| Multiple | The product of a number and any whole number. |
| Percent | A ratio that compares a number to 100. |
| Prime Factorization | Expressing a composite number as a product of prime numbers. For example, the prime factorization of 63 is 3 × 3 × 7. |
| Prime Number | A whole number greater than 1 that has exactly two factors, 1 and itself. |
| Ratio | A comparison of two numbers by division. The ratio of 2 to 3 can be written as 2 out of 3, 2 to 3, 2:3, or 2/3 |
| Rational Numbers | A number that can be expressed as a fraction. |
| Repeating Decimals | A decimal whose digits repeat in groups of one or more. Examples are 0.181818... and 0.83333... . |
| Simplest Form | A fraction is in simplest form when the GCF of the numerator and the denominator is 1. |
| Terminating Decimal | A decimal whose digits end. Every terminating decimal can be written as a fraction with a denominator of 10, 100, 1,000, and so on. |
| Venn Diagram | A diagram that uses overlapping circles to show how elements among sets of numbers or objects are related. |
Created by:
Mrs_Irish
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