# what's 10 1/2 divied by 2 1/4?

### 16 Answers

- MICHAEL KLv 78 months ago
21/2 divided by 9/4 is 21/2 x 4/9 = 14/3 or 4 2/3.

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- RRLv 78 months ago
10 1/2 -:- 2 1/4

First, convert them into improper fractions:

10 1/2 = 21/2

2 1/4 = 9/4

so now you have

21/2 -;- 9/4

To divide a fraction by a fraction, leave the first one alone, turn the second upside down and multiply:

21/2 x 4/9

Multiply the tops together and the bottoms together:

= 84/18

simplify (top and bottom are divisible by 6)

= 14/3

Convert back to mixed fraction by dividing 3 into 14:

= 4 remainder 2

= 4 2/3

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- geezerLv 78 months ago
Convert both numbers into fractions.

10 1/2 is 21/2 .. and .. 2 1/4 is 9/4

Now, when dividing by a fraction you ''turn it over and multiply''

So, 21/2 divided by 9/4 ... becomes 21/2 x 4/9

21/2 x 4/9 = 84/18 .. which is 14/3 (divide 84 and 18 by their common factor, 6)

and finally 14/3 becomes ... 4 2/3

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- JimLv 78 months ago
21/2 / 9/4

to divide, invert and multiply

21/2 * 4/9

now we can eliminate factors of (1):

= (3/3) 7/2 * 4/3

= 7/3 * 4/2

= 7/3 * 2 *(2/2)

= 14/3

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