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# Casio Fx-991ES not giving correct answer watch

1. I've got the casio Fx-991ES and I just brought it a few days ago and it is not giving me the answer to this question properly.
Firstly the calculation is (4.25/19)*50.

I type in 4.25/19 and it comes up as 17/76 when I times it by 50 the answer comes up as 425/36 and then when I press 'shift' and '=' the answer comes up as 559.2105263 which is completely not correct. I definately know this is wrong and it happens for other calculation, but not for all. Thanks.
2. u need to enter it like this

(4.25/19)^50
3. Thanks the correct answer came. Can you tell me please why this happens if possible?
4. (Original post by Ultimate1)
Thanks the correct answer came. Can you tell me please why this happens if possible?
It's because you pressed the wrong buttons! lol
5. why are you pressing shift equals?

just press s<->d
6. (Original post by Eaglepowers)
u need to enter it like this

(4.25/19)^50
That means to the power of
7. (Original post by bourney)
why are you pressing shift equals?

just press s<->d
Can you please tell me where that button is, if you don't mind?
8. I get 425/38 which = 11.18421053

You can use the fraction button 1st column 3 down, that helps sometimes when your doing big calc's.
And S<->D is 2nd column from right 5 keys down. That switches from 'improper' fractions to decimal, if you shift and sd it goes to 'proper' fractions.
9. (Original post by Ultimate1)
Can you please tell me where that button is, if you don't mind?
Just above the AC and DEL burgundy coloured buttons
10. (Original post by COMMUNIST)
Just above the AC and DEL burgundy coloured buttons
Thank you very much, mate!

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