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4/9 times 81 I just cant figure it out

2 Answers

6 votes

(4)/(9) * 81 = (4)/(9) * 9* 9 = (4*9*9)/(9) = (4*9)/(1) = 4* 9 =\boxed{\bf{36}}
User Lukas Bergstrom
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6.9k points
3 votes

4/9 × 81/1 ( the fraction still equals 81)

Now cross cancel;

4/1 × 9/1

multiply numerators;

4 × 9 = 36

multiply denominators;

1 ×1 = 1

so 4/9 × 81 = 36/1 or in simplest form = 36

User Vikk
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