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EXAMPLE 1 There are 10 fish in an aquarium, and 2 of them are goldfish. The fish in the aquarium are arranged in the diagram below. What fraction of the.

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Presentation on theme: "EXAMPLE 1 There are 10 fish in an aquarium, and 2 of them are goldfish. The fish in the aquarium are arranged in the diagram below. What fraction of the."— Presentation transcript:

1 EXAMPLE 1 There are 10 fish in an aquarium, and 2 of them are goldfish. The fish in the aquarium are arranged in the diagram below. What fraction of the fish in the aquarium are goldfish? Using the diagram, you can write two equivalent fractions: SOLUTION Identifying Equivalent Fractions

2 EXAMPLE 1 = 2 10 Number of groups of 2 goldfish Number of groups of 2 fish = 1 5 The fractions and are equivalent fractions because they represent the same part-to-whole relationship Number of goldfish Number of fish Identifying Equivalent Fractions

3 EXAMPLE 2 Writing Equivalent Fractions Multiply numerator and denominator by 3. Divide numerator and denominator by 2, a common factor of 6 and 8. = = 3 4 = ANSWER and are equivalent to Write two fractions that are equivalent to 6 8. To find equivalent fractions, multiply or divide the numerator and denominator by the same nonzero number. Because you are multiplying or dividing by 1, the value of the fraction does not change. 6 8 =

4 GUIDED PRACTICE for Examples 1 and 2 Groceries 1.Two eggs in a carton of a dozen eggs are cracked. Write two equivalent fractions that represent the fraction of eggs that are cracked. 1 6 ANSWER 3 18,

5 GUIDED PRACTICE Write two fractions that are equivalent to the given fraction ANSWER 3 18, ANSWER 9 30, ANSWER 12 27, ANSWER 4 6, for Examples 1 and 2


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