# I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up with 2:1, but it comes up with 10 when I press =.

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am having trouble simplifying... Solve I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up... (More) I am having trouble simplifying ratios on the FX-83ES. Any ideas? For example 10:5 should come up with 2:1, but it comes up with 10 when I press =.

Posted on Sep 13, 2009

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Posted on Jan 02, 2017

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## Related Questions:

### Please explain how you do ratios

A ratio can be simplified by dividing both sides of the ratio by the Highest Common Factor (HCF). The highest common factor is the largest number that goes into both numbers of your ratio. In example 1 you are asked to simplify the ratio 6:8. Here the HCF is 2 so divide both sides of the ratio by 2 to give 3:4.

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### How do i simplify ratios using casio scientific calculator fx-991ms

If you enter the ratios using the fraction entry key ( [a b/c] the results will be displayed as fractions. And when the calculator displays fractions they are always in their reduced form.
In general, when you are manipulating fractions ( Pi/2 is no a fraction even if you write it as one) you can try to simplify them by looking for the greatest common factor (GCF) of the numerator and denominator. When you simplify by the GCF the fraction that is left is in its reduced form.

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If you enter the ratios using the fraction entry key ( [a b/c] the results will be displayed as fractions. And when the calculator displays fractions they are always in their reduced form.
In general, when you are manipulating fractions ( Pi/2 is no a fraction even if you write it as one) you can try to simplify them by looking for the greatest common factor (GCF) of the numerator and denominator. When you simplify by the GCF the fraction that is left is in its reduced form.

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### How do you use the pie button on a casion scientific calculator fx-83ES

Simply press SHIFT [pi] to insert the value of pi into an expression. For example, to calculate pi/2, press SHIFT [pi] / 2 =

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Hello,
Press [SHIFT][AC] (ON).
Hope it helps.

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### Any way to make decimal answers the default? (casio fx-83ES)

you want a line output

Shift > Mode > 2:LineIO or on the graphics one its sometimes 10:LineO etc.

look for something with line in it

Steve :P

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Try 1/x button, does that give you the correct answer ? guessing the inverse ?

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Hello,
Sorry the calculator handles fractions but not radicals. You may be interested in the newer Casios FX-115ES, or FX-991ES, (Natural display).
It handles a lof more that radical and fractions.
Hope it helps.

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there is a button SD close to AC button, standard - decimal try it .......or
shift+mode format math IO, change it to the other option

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