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Back to Exercise: Apply and extend previous understandings of multiplication to multiply a fraction by a whole number

Exercises: Multiplying a Fraction by a Whole Number

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Grade 4·21 problems·~30 min·Common Core Math - Grade 4·standard·4-nf-b-4
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A

Recall / Warm-Up

1.

How many copies of 14\frac{1}{4} make 54\frac{5}{4}?

2.

5 x 3 means 5 groups of 3. What is 5×35 \times 3?

3.

Convert 125\frac{12}{5} to a mixed number.

B

Fluency Practice

1.

What is 3×143 \times \frac{1}{4}?

2.

What is 4×384 \times \frac{3}{8}? Express as an improper fraction.

3.

Use the rule to rewrite 3×253 \times \frac{2}{5}: 3×25=3×25=00000053 \times \frac{2}{5} = \frac{3 \times 2}{5} = \frac{\hspace{0.2em}\fbox{\phantom{000000}}\hspace{0.2em}}{5}.

numerator:
4.

What is 4×344 \times \frac{3}{4}? Give your answer as a whole number.

5.

What is 6×146 \times \frac{1}{4}? Write your answer as a mixed number.

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