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Regrouping mixed fractions

5 4/20 - 2 9/10

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5 4/20 = 104/20
2 9/10 = 29/10 = 58/20

104/20 - 58/28 = (104-58)/20 = 46/20 = 2 6/20 = 2 3/10

Posted on Mar 18, 2014

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1 Answer

Mixed fraction


To manipulate mixed numbers (not mixed fractions) one usually converts them to improper fractions then operate on them.
Here it is rather simple
9 4/7- (2 3/14)=(9+8/14) -(2 +3/14)= (9-2) +(8/14 -3/14) =7 5/14

Dec 13, 2013 | Office Equipment & Supplies

3 Answers

Multiplying mixed fractions


Convert each mixed number (what you call mixed fraction) to an improper fraction, then multiply the two numerators and multiply the two denominators. Reduce the resulting fraction to its simplest form

Example
(2 1/3)*(1 5/7)=?
Convert 2 1/3 to an improper fraction 2 1/3=2+ 1/3 = 6/3+1/3=7/3
Convert 1 5/7 to an improper fraction 1 5/7=1+ 5/7 =7/7 +5/7=12/7
(2 1/3)*(1 5/7)= (7/3)*(12/7)= (7*12)/(3*7)
The 7's in the numerator and denominator cancel one another leaving
12/3=4
(2 1/3)*(1 5/7)=4
Not all products of mixed numbers will give a simple result as this one. More likely they will not.

Dec 12, 2013 | Computers & Internet

2 Answers

How to divide mixed numbers?


Probably the simplest is to convert both numbers to improper fractions then divide.
Some calculators can work with fractions. With one of those, simply enter the first mixed number, then divide by the other.

Aug 14, 2013 | Mathsoft Computers & Internet

1 Answer

Mixed numbers


If the result is positive, type in the integer part then add the fraction part either with the help of the fraction key or the division key. (I do not think that the TI82 has a fraction key.
If it is anything like the TI3 there is command under MATH >Frac. It should be pressed after you enter the mixed number to keep the result as a fraction.
If the mixed number is negative you enclose the whole number in parentheses. Press the change sign (-) key to negate the result.

Sep 26, 2012 | Texas Instruments TI-82 Calculator

1 Answer

I have a el-531x how do i cauculate fractions with it


Use the key marked [a b/c]
  • To enter a mixed fraction, enter integral part, press [a b/c], enter the numerator pf fraction part, press [a b/c], then enter the denominator of the fraction and press =.
  • To enter a fraction or an improper fraction, enter numerator, press [a b/c], then the denominator and =
  • If the displayed result is a mixed number , use [2nd][a b/c] to convert it in a fraction (improper fraction).

May 22, 2012 | Sharp EL-531VB Calculator

1 Answer

I don't know how to simplify fractions on this calculator.


You do not simplify fractions on the calculator. If the calculator is able to display fraction results, be sure that the form it gives you is the simplest. If the fraction is a mixed one there is usually a key to switch from mixed to improper, and from improper to mixed the keys are [a b/c] and [d/c]

Aug 01, 2011 | Texas Instruments TI-30 XIIS Calculator

1 Answer

How do you do a fraction on a sharp el531w


Hi eamon at hom,

Doing fraction on the Sharp El 531W really isn't that bad. I had to use pictures because, the symbols will not transfer over to your posting for me to show you. When you select the [ON/C] this clears the calculator of previous calculations and, data so that they won't interfere with your new calculations.

Let take the first example where a mix number is being added to a improper fraction. Because I used the [a^b/c] key this makes the calculator display the answer in a mixed fraction format or, a proper fraction format. If I press the [a^b/c] key again after the answer the format will change to a decimal format. The fractional formats are displayed in a mixed number, improper or, proper fraction formats. A improper fraction is really a proper fraction number with the top number (numerator) is greater than or equal to the bottom number (denominator).

[ON/C] [3] [a^b/c] [1] [ [a^b/c] [2] [+] [4] [a^b/c] [3] [=] mixed number results. Now let's do the same calculation as a improper or, proper fraction format.
[ON/C] [7] [a^b/c] [2] [+] [2] [a^b/c] [3] [=] still a mixed number result. Even though I enter the fractions in a improper and, proper fraction formats the calculator will still display in a mixed number format. This is because the calculator first displays as a mixed number if it can. If it can't then it will display the value as a proper fraction and, never as a improper fraction. To convert from a mixed number to a improper fraction format if the calculator did not convert it to a proper fraction, I have to use [2ndF] [d/c] keys on the command line.


oneplusgh_0.png
This show a little more complex raised power use of the [a^b/c] key.
oneplusgh_44.jpg
This shows the [2ndf] [x^-1] keys being used to calculate fractions.

oneplusgh_45.jpg
When I first saw this question being asked it, was answered with just use the / command. Which that isn't really a good answer because, in math we like to use elimination. If you use the / command eventually the numbers are going to be rounded off and, your not going to be able to eliminate anything. If you have any further question on how to preform fractions with this calculator be sure to post your comment and, I'll be glad to help.

Jan 13, 2011 | Sharp EL-501WBBL Calculator

1 Answer

Can this convert decimal measurements to fractions of an inch


Enters a proper or improper fraction,
b?c (b { 6 digits, c { 3 digits). When
possible, improper fractions are
displayed as mixed numbers.
3 F 4 3?4
8 3 J 21?4
Single-variable functions display
decimal results.
1 F 2 0 0.25
a F b F c Enters the mixed fraction a b?c.
(a, b, c { 3 digits each, with the total
digits { 8).
6 F 4 F 6 64?6
J 62?3
"s Toggles display between a mixed
number and an improper fraction.
30 F 4 30?4
"s 71?2
"s 15?2
"s 71?2
"y Toggles display between fraction and
decimal.
55 F 24 55?24
"y 2.291666667
"y 27?24
If a result would overflow or if fixed decimal is 0, no
fraction to decimal conversion occurs. It is not an error.
Denominator must be a whole number {999.

Nov 28, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How to change a decimal into a fraction


Use the [a b/c] button to convert a displayed decimal number to a mixed fraction. If you want to convert further to an improper fraction press [SHIFT][a b/c] to access (d/c).

The sequence [SHIFT][a b/c] (d/c) toggles between improper fractions and mixed fractions.

Sep 07, 2010 | Casio FX-300MS Calculator

1 Answer

Mixed fractions


When you get a fraction for he answer: shift-S<->D[a b/c<->d/c]

This way, you change it to a mixed fraction or improper fraction

Sep 14, 2008 | Casio FX-115ES Scientific Calculator

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