Question about Casio fx-300ES Calculator

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When I divide answers are always given in Fractions. Can I change it to come out in decimals?

I know the s=d button will convert my answer from fraction to decimal, but is there a way to set the calculator up to give answers in decimals not fractions?

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  • Anonymous Dec 04, 2008

    Same thing happens.

  • Anonymous Mar 10, 2009


  • Anonymous Apr 21, 2009

    this works as i am about to do a maths exam so it was really helpful 

  • Anonymous Mar 24, 2014

    Fourteen and thirty-five hundredths convert to fraction


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To change from Fraction display to Decimal display on the Casio fx-300ES (and probably other calculators)

1) Press the "SHIFT" button
2) Press the "MODE/SETUP" button
3) Press the "2" button
This Changes it to LINEIO (Decimal)

Doing all of the above but pressing the "1" button instead of the "2" puts it back into MATHIO mode (Fraction)

Hope this Helps

(SHIFT)(MODE/SETUP)(2) to change to decimal

Posted on Dec 08, 2008

  • Ayra Shafique
    Ayra Shafique Feb 07, 2014

    Thank you. This helped a lot :)


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1 Answer

527 would be what percent of 3062

About 17.2%

Divide 527 by 3062 then multiply by 100.

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1 Answer

How do I dived 9 dived by -1 5/7

1and 5/7 ==1.7142 (5/7 to get decimal point=.7142)

+ 9 divided by minus 1.7142= minus 5.1688

using the maths laws of multiplication and division of numbers where + and - indicies are used +X+ =+ and + X - = - and - X- = +

you will find answers on the web maths pages

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1 Answer

180/900 in the lowest terms

180/900 is 1/5 in the lowest terms.

Divide both 180 and 900 by 180. 180 divided by 180 is 1, 900 divided by 180 is 5. This gives 1/5.

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What are rational numbers

Use the words: decimal part, not decimal fractin
Any number whose decimal part is periodic (has a recurring pattern that repeats indefinitely) is equivalent to a rational number, IS a rational number
0.345 345 345 ... =345/999=115/333
In the following screen captures, discard the last digit if it does not belong to a period. It is the effect of rounding up of the calculator

Period is 345

Period is 1
Period is 09
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In general, if you have a decimal part of the form 0.d_1 d_2 d_3....d_n d_1 d_2 d_3 ...d_n ... where d_1 is the first digit of the period, d_2 is the 2nd digit of the period, ..., d_n is the n-th digit (and the last one) of the period, then the fraction representation of
0.d_1d_2...d_n d_1d_2... d_n ...=(d_1d_2...d_n)/(99...9) where the number of 9's in the denominator is equal to the number of digits in the period.
Once the fraction is found, one should reduce it to its simplest form.

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2 Answers

Is 0.08 less than 6%

Bot are numbers that are written in two different representations. To compare them safely you must convert them to the same representation.
0.08=8/100 or 8%
Now compare 8 % and 6%
Another way to do it is to convert 6% to its decimal representation then compare it to 0.08
Since we have fractions let us just compare them. When comparing fractions, we first convert them to the same denominator (here it is 100). The greater one is the one with the greater numerator: 8 is greater than 6.
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1 Answer

The circumference of a circle is 47.1 feet. What is the diameter of the circle?

The circumference of a circle is C=2 * pi * r or C= pi * d.

What do we know? C=47.1 and pi.

What are we trying to calculate? d

Put what we know in the equation and solve for d.

47.1 = pi * d

To isolate d, we have to divide both sides by pi.

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I get 14.99' or approximately 15' as the diameter.

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