CCSS.Math.Content.4.NF.B.4.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.

Apply and extend previous understandings of multiplication to multiply a fraction or whole number by a fraction.

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.

Apply and extend previous understandings of multiplication and division to multiply and divide fractions.

Apply and extend previous understandings of division to divide unit fractions by whole numbers and whole numbers by unit fractions.

Understand a fraction 𝑎/𝑏 as a multiple of 1/𝑏.

Understand a fraction 𝘢/𝘣 as a multiple of 1/𝘣.

Understand a fraction 𝘢/𝘣 as a multiple of 1/𝘣.

Understand a fraction 𝘢/𝘣 as a multiple of 1/𝘣.

Understand a fraction a/b as a multiple of 1/b;