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Multiplying fractions is easy: you multiply the top numbers(numerators) and multiply the bottom numbers(denominators). For instance: When possible, you reduce. In this case, however, nothing reduces, because 8 and 45 have no factors in common. If you're not sure, you can always do prime factorization: Nothing cancels. Copyright © Often, though, something will cancel: Put each number in prime-factored form and cancel common factors: Another way…cancel common factors as you go.. http://www.mathsisfun.com/fractions_multiplication.html 2 3 1 3 7 4 2 1 1 1

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Dividing fractions is just about as easy; there's just one extra step. When you divide by a fraction, the first thing you do is "flip-n-multiply". That is, you take the second fraction, flip it upside-down, and multiply it by the first fraction. (The upside- down fraction is called the reciprocal). For instance: Example 1 Example 2: 2 1

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Mixed Number - A number, such as consisting of a whole number and a fraction. A mixed number is just the sum of a whole number and a fraction. Improper Fraction - A fraction in which the numerator is larger than the denominator. Converting from mixed number to improper fraction: Mixed numbers must be converted to improper fractions or decimals before doing ANY MULTIPLICATION OR DIVISION OPERATIONS on them. A fraction can be converted into a decimal by dividing: Numerator ÷ Denominator

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Example: What is 1 1 / 2 x 2 1 / 5 ? Steps: 1.convert to Improper Fractions 2.Multiply the Fractions 3.convert the result back to Mixed Fractions Example: What is 1 3 / 8 × 3 ? = 11 / 8 × 3 / 1 = 33 / 8 = 4 1 / 8

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http://www.mathsisfun.com/fractions_division.html

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Review of Fractions. Important Notes Leave all answers in “simplest form” No common factors in the numerator and denominator Use proper or improper fractions.

Review of Fractions. Important Notes Leave all answers in “simplest form” No common factors in the numerator and denominator Use proper or improper fractions.

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