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Class 7 maths · A.15 · Unit rates

Unit rates with fractions: thirds and quarters

Divide the first fraction by the second. Dividing by a fraction is multiplying by its flip.

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  1. Kai walks 27/4 of a mile in 3/4 of an hour at a steady pace. How many miles per hour is that? (A fraction or whole number.)

    Answer: 9

  2. Jamal walks 11/4 of a mile in 1/2 of an hour at a steady pace. How many miles per hour is that? (A fraction or whole number.)

    Answer: 11/2

  3. Nia walks 7/12 of a mile in 1/3 of an hour at a steady pace. How many miles per hour is that? (A fraction or whole number.)

    Answer: 7/4

Tip: Divide the first fraction by the second. Dividing by a fraction is multiplying by its flip.

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