What is the result of multiplying $$\frac{1}{4}$$ by 4?

$$\frac{1}{4} \times 4 = \frac{1 \times 4}{4} = 1$$ .

If Vince's Fruit Stand sold $$\frac{1}{5}$$ of a box of melons, how much did Janice's Fruit Stand sell if she sold 2 times as many?

Janice's Fruit Stand sold $$2 \times \frac{1}{5} = \frac{2}{5}$$ of a box of melons.

What is $$\frac{1}{3} \times 3$$ ?

$$\frac{1}{3} \times 3 = \frac{1 \times 3}{3} = 1$$ .

If Deb did homework for 1/3 as many hours as Porter, and Porter did homework for 3 hours, how many hours did Deb spend?

Deb spent $$\frac{1}{3} \times 3 = 1$$ hour doing homework.

What does it mean to multiply a fraction by a whole number?

Multiplying a fraction by a whole number means you are taking that fraction of the whole number. For example, $$\frac{2}{5} \times 10 = 4$$ .

What is $$\frac{2}{3} \times 3$$ ?

$$\frac{2}{3} \times 3 = \frac{2 \times 3}{3} = 2$$ .

How can you visualize multiplying a fraction by a whole number?

You can visualize it using a number line or by dividing a whole into equal parts and counting the parts represented by the fraction.

If a fruit stand sold $$\frac{1}{5}$$ of a box of melons, how many boxes did they sell if they sold 10 times that amount?

They sold $$10 \times \frac{1}{5} = 2$$ boxes of melons.

What is the formula for multiplying a unit fraction by a whole number?

The formula is: If $$\frac{1}{n}$$ is a unit fraction and $$k$$ is a whole number, then $$\frac{1}{n} \times k = \frac{k}{n}$$ .

How do you simplify the fraction $$\frac{4}{8}$$ ?

You simplify $$\frac{4}{8}$$ by dividing both the numerator and the denominator by their greatest common divisor, which is 4. So, $$\frac{4 \text{ ÷ } 4}{8 \text{ ÷ } 4} = \frac{1}{2}$$ .

Multiplying Unit Fractions by Whole Numbers Flashcards

Student preview

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is a unit fraction?

Back

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2A

2.

FLASHCARD QUESTION

Front

How do you multiply a unit fraction by a whole number?

Back

3.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.5.NF.B.4A

4.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.4.NF.B.4B

CCSS.4.NF.B.4C

5.

FLASHCARD QUESTION

Front

Back

Tags

CCSS.5.NF.B.4A

6.

FLASHCARD QUESTION

Front

How do you express a whole number as a fraction?

Back

Tags

CCSS.3.NF.A.3C

7.

FLASHCARD QUESTION

Front

What is the relationship between multiplying fractions and whole numbers?

Back

Tags

CCSS.5.NF.B.4A

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