standard_description: Express a fraction with denominator 10 as an equivalent fraction with denominator 100, and use this technique to add two fractions with respective denominators 10 and 100. (Students who can generate equivalent fractions can develop strategies for adding fractions with unlike denominators in general. But addition and subtraction with unlike denominators in general is not a requirement at this grade.) For example, express 3/10 as 30/100, and add 3/10 + 4/100 = 34/100.
Grade 4 expectations in this domain are limited to fractions with denominators 2, 3, 4, 5, 6, 8, 10, 12, and 100.
problem_activity: Problem 1
The model below represents one whole.
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Which fraction is equivalent to the one represented by the shaded part of the model?
Problem 2
A point is shown on the number line diagram below.
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Write three equivalent fractions for the location of this point.
Problem 3
Use the number line to explain how you know the fractions in #2 are equivalent.


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