Rules that apply to terms will not, in general, apply to factors. It is very important to be able to distinguish between terms and factors. When an algebraic expression is composed of parts to be multiplied, these parts are called the factors of the expression. In 2x + 5y - 3 the terms are 2x, 5y, and -3. When an algebraic expression is composed of parts connected by + or - signs, these parts, along with their signs, are called the terms of the expression. Since these definitions take on new importance in this chapter, we will repeat them. This gives us 1/4.In section 3 of chapter 1 there are several very important definitions, which we have used many times. For example, to simplify 3/4, we divide both the numerator and denominator by 4. We can simplify a fraction by dividing the numerator and denominator by the same number. The LCM of 3 and 4 is 12.ģ*4=12 How can we simplify a fraction with a numerator more than its denominator? We can find the LCM of two numbers by multiplying them together. How to find the least common denominator for two numbers The GCF and LCM are used to simplify fractions by reducing them to lowest terms. The least common multiple (LCM) of two numbers is the smallest number that is a multiple of both. The greatest common factor (GCF) of two numbers is the largest number that divides both numbers without a remainder. How to find the greatest common factor for two numbers
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