I'm confused

• Oct 20th 2007, 03:42 PM
I'm confused
To divide a fraction by another,you flip the one you are dividing by to get the reciprocal and then multiply

5/8 '/. 2/3 = 5/8 x 3/2

5 x 3 = 15
8 x 2 = 16

therefore 15/16 which = 0.9375

However 5/8 = 0.625

Divide this by 3 and you get 5/24
so x2 and you get 10/24

10/24 /= 15/16
• Oct 20th 2007, 03:54 PM
Jhevon
Quote:

To divide a fraction by another,you flip the one you are dividing by to get the reciprocal and then multiply

5/8 '/. 2/3 = 5/8 x 3/2

5 x 3 = 15
8 x 2 = 16

therefore 15/16 which = 0.9375

However 5/8 = 0.625

Divide this by 3 and you get 5/24
so x2 and you get 10/24

10/24 /= 15/16

i suppose you are confused that you did not get the same answer? well, you shouldn't. what you did afterwards amounted to computing $\frac 58 \times \frac 23$

if you wanted to get the same result with two different operations, you need to take 5/8, divide it by 1/3 and then divide the answer again by 2