429,123 views
1 vote
1 vote
help please! by what fraction would you multiply 8 1/2 so that the proudct is about 5 explain your reasiong

User Tom Fobear
by
3.0k points

2 Answers

19 votes
19 votes

Answer:

Explanation:

User Ambra
by
3.1k points
11 votes
11 votes

9514 1404 393

Answer:

5/8 or 5/9

Explanation:

The fraction will be exactly ...

5/(8 1/2) = 10/17 ⇒ (8 1/2)×(10/17) = 5

__

The fraction will be approximately ...

5/8 or 5/9

The denominator will be a number that makes (8 1/2)/(denominator) ≈ 1. For that denominator, the numerator will be 5, so that we have ...

(8 1/2) × (5/denominator) ≈ 5

(8 1/2)/(denominator) ≈ 1 . . . . . . . . divide by 5

If we want the denominator to be an integer, we could choose either 8 or 9. If we choose 8, the result will be slightly more than 5; if we choose 9, the result will be slightly less.

(8 1/2) × (5/8) = 5.3125 ≈ 5

(8 1/2) × (5/9) = 4.722... ≈ 5

Either 5/8 or 5/9 will give a product of about 5.

User Jason Frank
by
3.1k points