Fractions of Whole Numbers
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Fractions of Whole Numbers
Fractions of whole numbers worksheet for Grades 6 and 7: whole numbers times fractions, fractions such as 2/5 of 42 and 5/3 of 186, and whole numbers times mixed numbers, each in simplest form. With an answer key.
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- Pages
- 1
- Last updated
- Time
- About 15 minutes
- Answer key
- Included
- Printing
- Black and white
- Related curriculum
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Multiply a whole number by a fraction as repeated groups of a unit fraction, then multiply a fraction or a mixed number by a fraction by multiplying the top numbers and the bottom numbers, and simplify.
Reviewed by Mr. Daniel Carter, Teacher. How we check worksheets
How to use this sheet
- Read "×" as "of" for fraction problems: 1/2 × 6 is half of 6.
- Use the area model sheets to show why the denominators are multiplied.
- Ask the child to predict whether each answer will be more or less than the whole number before working it out.
Common mistakes
- Finding a common denominator first, as for adding. For multiplying, multiply tops and bottoms straight across.
- Multiplying a whole number by both the top and the bottom, so 3 × 2/5 becomes 6/15. Write 3 as 3/1 first.
- Expecting the answer to be bigger than both factors. Multiplying by a fraction less than 1 gives less.