Fifth Grade Common Core Math 5 NF.4 Multiply Fractions 5.NF.4 Practice provides two ways for students to practice and show mastery of their ability to multiply fractions by fractions and includes visual fraction models.
It includes 45 distinct problems in two sets (144 slides in all!), with and without following answer slides. The PowerPoint file can be used on computers, or Promethean and Smart boards.
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Common Core Standard 5.NF.4 Apply and extend previous understandings of multiplication and division to multiply and divide fractions.
4. Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.
a. Interpret the product (a/b) × q as a parts of a partition of q into b equal parts; equivalently, as the result of a sequence of operations a × q ÷ b. For example, use a visual fraction model to show (2/3) × 4 = 8/3, and create a story context for this equation. Do the same with (2/3) × (4/5) = 8/15. (In general, (a/b) × (c/d) = ac/bd.)
b. Find the area of a rectangle with fractional side lengths by tiling it with unit squares of the appropriate unit fraction side lengths, and
show that the area is the same as would be found by multiplying
the side lengths. Multiply fractional side lengths to find areas of
rectangles, and represent fraction products as rectangular areas.