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# Scaffolded LCD Worksheet for Adding/Subtracting Fractions w/ Unlike Denominators

3rd - 7th
Subjects
Standards
Resource Type
Formats Included
• PDF
Pages
1 page

### Description

Scaffolded worksheet to get the students ready for adding fractions with unlike denominators. Separates the steps into a chart and makes breaking it down easier so students can complete work independently.

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Total Pages
1 page
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Teaching Duration
N/A
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### Standards

to see state-specific standards (only available in the US).
Add and subtract fractions with unlike denominators (including mixed numbers) by replacing given fractions with equivalent fractions in such a way as to produce an equivalent sum or difference of fractions with like denominators. For example, 2/3 + 5/4 = 8/12 + 15/12 = 23/12. (In general, ๐ข/๐ฃ + ๐ค/๐ฅ = (๐ข๐ฅ + ๐ฃ๐ค)/๐ฃ๐ฅ.)
Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem. For example, create a story context for (2/3) รท (3/4) and use a visual fraction model to show the quotient; use the relationship between multiplication and division to explain that (2/3) รท (3/4) = 8/9 because 3/4 of 8/9 is 2/3. (In general, (๐ข/๐ฃ) รท (๐ค/๐ฅ) = ๐ข๐ฅ/๐ฃ๐ค.) How much chocolate will each person get if 3 people share 1/2 lb of chocolate equally? How many 3/4-cup servings are in 2/3 of a cup of yogurt? How wide is a rectangular strip of land with length 3/4 mi and area 1/2 square mi?
Find the greatest common factor of two whole numbers less than or equal to 100 and the least common multiple of two whole numbers less than or equal to 12. Use the distributive property to express a sum of two whole numbers 1โ100 with a common factor as a multiple of a sum of two whole numbers with no common factor. For example, express 36 + 8 as 4 (9 + 2).