Lesson 7 of 10 · Grades 3 to 5
Practice: Fractions of a whole number
For each question, divide to find one share and multiply to take the right number of shares. Ten questions follow, from one third of 18 up to a homework problem.
How to use this page
This page gives you ten more questions on the same idea as the lesson "Fractions of a whole number". Work through them at your own speed. Write your answer down or say it out loud before you open the answer box, so you give yourself a real chance to think.
If a question feels hard, go back to the lesson and look at the worked example again. Getting a question wrong is useful; it shows you the part that needs one more look.
Practice questions
Answer all ten questions in your notebook or in your head. Then open each answer to check your work.
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What is 1/3 of 18?
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6. Divide 18 by 3 to get one share.
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What is 2/3 of 18?
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12. One third is 6, so two thirds is 2 x 6 = 12.
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What is 3/5 of 25?
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15. 25 ÷ 5 = 5 and 3 x 5 = 15.
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What is 4/7 of 28?
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16. 28 ÷ 7 = 4 and 4 x 4 = 16.
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What is 1/6 of 30?
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5. 30 ÷ 6 = 5.
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What is 5/6 of 30?
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25. One sixth is 5, so five sixths is 5 x 5 = 25.
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What is 3/8 of 32?
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12. 32 ÷ 8 = 4 and 3 x 4 = 12.
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What is 7/10 of 40?
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28. 40 ÷ 10 = 4 and 7 x 4 = 28.
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A stamp album has 36 stamps. Four ninths of them are from Australia. How many stamps is that?
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16. 36 ÷ 9 = 4 and 4 x 4 = 16.
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Homework takes 45 minutes. You finish 3/5 of it. How many minutes have you worked?
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27 minutes. 45 ÷ 5 = 9 and 3 x 9 = 27. That leaves 18 minutes.