Answers Grade 7 Mathematics Multiplying Fractions — QuizQuestion 2

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Multiplying Fractions — Quiz

Question 2 • Grade 7 Mathematics

Which shows how the distributive property can be used to evaluate 7 times 8 and 4 fifths ?

Answer

A

56 times 28 fifths is equal to 1568 fifths is equal to 313 and 3 fifths

B

56 plus 28 fifths is equal to 56 plus 5 and 3 fifths is equal to 61 and 3 fifths

C

15 plus open paren 35 fifths plus 4 fifths close paren is equal to 15 plus 39 fifths is equal to 75 fifths plus 39 fifths is equal to 114 fifths is equal to 22 and 4 fifths

D

15 times open paren 35 fifths plus 4 fifths close paren is equal to 15 times 39 fifths is equal to 15 over 1 times 39 fifths is equal to 585 fifths is equal to 117

Explanation

Rewrite 8 and 4/5 as 8 + 4/5, then distribute 7: 7 × (8 + 4/5) = (7 × 8) + (7 × 4/5) = 56 + 28/5. Since 28/5 = 5 and 3/5, the result is 61 and 3/5, which is choice B.

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