Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Add and Subtract Like Fractions Example 1:Add Like Fractions Example 2:Add Like Fractions Example.

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Presentation transcript:

Lesson Menu Main Idea and New Vocabulary NGSSS Key Concept:Add and Subtract Like Fractions Example 1:Add Like Fractions Example 2:Add Like Fractions Example 3:Subtract Like Fractions Example 4:Subtract Like Fractions Example 5:Subtract Like Fractions Example 6:Real-World Example Five-Minute Check

Main Idea/Vocabulary Add and subtract fractions with like denominators. like fractions

NGSSS MA.7.A.3.2 Add, subtract, multiply, and divide integers, fractions, and terminating decimals, and perform exponential operations with rational bases and whole number exponents including solving problems in everyday contexts.

Key Concept

Example 1 Add Like Fractions Find Write in simplest form. Add the numerators. Simplify. Answer: __ 11 12

Example 1 CYP FindWrite in simplest form. A. B. C. D.

Example 2 Add Like Fractions Find Write in simplest form. Add the numerators. Use the rules for adding integers. Answer: – __ 5 6

Example 2 CYP Find Write in simplest form. A. B. C. D.

Example 3 Subtract Like Fractions Find Write in simplest form. Subtract the numerators. Simplify. Answer: __ 2 3

Example 3 CYP Find Write in simplest form. A. B. C. D.

Example 4 Subtract Like Fractions Find Write in simplest form. Answer: – __ 9 10 Subtract the numerators. Simplify.

Example 4 CYP Find Write in simplest form. A. B. C. D.

Example 5 Subtract Like Fractions Find. Write in simplest form. Answer: – __ 1 2 Subtract the numerators. Simplify.

Example 5 CYP Find –. Write in simplest form. A. B. C. D.

Example 6 ART A picture mounted on art board is inch thick. The frame for the picture is inch thick. How much thicker than the picture is the frame? Subtract the numerators. Answer: The picture is inch thicker than the frame. Simplify. =

Example 6 CYP WINDOWS A pane of window glass is inch thick. A second pane of glass is inch thick. How much thicker is the second pane of glass? A. in. C.in. B. in.D.in.

Five Minute Check 1 Find. Write in simplest form. A. B. C. D.

Five Minute Check 2 Find. Write in simplest form. A. B. C. D.

Five Minute Check 3 Find. Write in simplest form. A. B. C. D.

Five Minute Check 4 A.1 B. C.– D.–1 Find. Write in simplest form.

Five Minute Check 5 For their foreign language requirement, of students take French and of students take Spanish. The remaining students take sign language. What fraction of students takes sign language? A.C. B.D.

Five Minute Check 6 Eric had of a bottle of shampoo left. He used of the bottle on his dog. How much shampoo did Eric have left? A. of a bottleC. of a bottle B. of a bottleD. of a bottle